Metal Forming Research Articles

Role of Woody Biomass Ash Material in Immobilization of Cadmium, Lead and Zinc in Soil.

Nowadays, we have observed the dynamic development of bio-heating plants that use wood biomass for heating or energy purposes. The result of this process is a reduction in carbon dioxide emissions as well as in the production of biomass ash (BA). Despite the waste nature of BA, it should be carefully analyzed and assessed for various applications, including environmental ones. Due to the features attributed to BA, including its alkaline reaction, the high capacity of its sorption complex, relatively low salinity, and significant content of macro- and microelements, a hypothesis was put forward in this work undertaken about the positive role of BA as an immobilizing factor for Cd-, Pb-, and Zn-contaminated soils. This research was based on a pot experiment in which four series were considered: (1) BA; (2) BA + Cd; (3) BA + Pb; and (4) BA + Zn. BA was used at doses of 30, 60, and 90 mg pot-1, and metals at doses of 2 mg Cd, 100 mg Pb, and 300 mg Zn kg-1 of soil. The test plant was corn grown for green mass. The study took into account the influence of BA on the content of the total forms of heavy metals (Metot) and their available forms (Meav). In the soil without the addition of metals, a significant increase in the content of Cdtot and Cdav, and a decrease in the content of Zntot were observed due to the application of BA. The addition of metals against the background of the BA used resulted in a significant increase in Cdtot, Pbtot, and Zntot, as well as an increase in the available forms of Pbav but a decrease in Znav. However, there was no significant increase in the Cdav content. The obtained results may indicate the potentially immobilizing role of BA only in the case of zinc. They may constitute the basis for further, more detailed research aimed at determining the role of BA in the immobilization of various metals in soil.

Preface

43rd International Deep Drawing Research Group (IDDRG) Conference Sustainable Sheet Forming - Circular Economy Melbourne, Australia 1. Introduction The 43rd International Deep Drawing Research Group (IDDRG) conference was held in Melbourne, Australia, on 12–15 March. The conference was co-organised by Deakin University and the Korean Society for Technology of Plasticity. The conference chairs were: Prof. Bernard Rolfe (Deakin University), A/Prof. Matthias Weiss (Deakin University), and Prof Jeong Whan Yoon (KAIST/Deakin University).During IDDRG 2024, all engineering aspects of sheet metal forming were discussed, such as behaviour of workpiece materials, formability, tools, tribology, process robustness, simulation methods and experiments. The general theme of IDDRG 2024 was Sustainable Sheet Forming – Circular Economy. International Deep Drawing Research Group The International Deep Drawing Research Group (IDDRG) was started in the late 1950s as an organization of national groups devoted to the study of sheet metal forming including forming processes, materials, formability issues, tooling, tribology and many other interesting aspects of sheet metal forming research and industrial practices.At the IDDRG, the leading sheet metal specialists and researchers from all over the world gather for fruitful discussions on challenging technical topics in forming technology. The conference is designed to provide an open and inspiring environment for knowledge development, discussions and interactions. Conference topics The theme of the IDDRG 2024 conference was Sustainable Sheet Forming – Circular Economy. In addition to the main theme of the conference, topical sessions with the focus on the challenges and current trends in the field of sheet metal forming, such as: fossil-free steel, sustainable/advanced/smart materials, multi-material concepts/solutions, forming/formability, lightweight structures, digital transformation, digitalization, smart plants, smart press shops, cold and hot forming and trimming (incl. single and multi-step forming and trimming), tribology, simulations (incl. material models, topology optimization, tribology, springback compensation, and geometry assurance), testing, testbeds, springback, shape accuracy, geometry assurance, surface quality, tools and dies, and additive manufacturing.There were six additional mini-symposiums organised by internationally renowned experts held at IDDRG 2024:• 1. Material, Process Monitoring and Quality Control in Roll Forming Processes, organized by Matthias Weiss (Deakin University, Australia);• 2. Forming, Joining and Failure of Fuel Cell and Battery Materials, organized by Michael Pereira (Deakin University, Australia), and Jeong Yoon (KAIST/Deakin University, Korea/Australia);• 3. Machine Learning Driven Forming, organized by Hyunsung Choi (Korea Institute of Materials Science, Korea);• 4. Flexible Metal Forming, organized by Namsu Park (Korea Institute of Industrial Technology, Korea);• 5. Innovative Metal Forming Technology, organized by Professor Richard Yang (Western Sydney University, Australia);• 6. Advanced Materials Characterization, organised by Madhav Baral (University of Kentucky, USA).It was the first time to consider fuel cell and battery cell forming, however, given the global conversion to electric vehicles, it is assumed this forming topic may continue at future IDDRG conferences.List of Keynotes, Venue, Chairs, Organising committee, Scientific Committee, Editors, Number of presentations, published scientific papers/first authors, and participants, Technical/Industrial tours, Acknowledgements and Sponsors and exhibitors are available in this pdf.

Anomaly Detection in the Automotive Stamping Process: An Unsupervised Machine Learning Approach

In metal forming, such as stamping of automotive parts, unsupervised machine learning models offer a transformative approach to real-time quality control, especially when labelled data are scarce. Leveraging clustering algorithms and autoencoders, we develop a machine learning system capable of autonomously monitoring sensor data and identifying deviations suggestive of potential defects. The system offers multiple benefits including rapid intervention, reduced part defects and lower stoppages required to rectify defects. The use of unsupervised machine learning models also adds a layer of adaptability, allowing the system to continually refine its understanding of what constitutes a ‘normal’ operation. Empirical evaluation demonstrates the potential of the developed system in detecting anomalies in production data collected from dynamic automotive manufacturing environments.

Influence of Hole Preparation Technique on Stretch Flangeability of Aluminium Alloys

Application of aluminium alloys has increased for light-weighting the sheet metal parts in manufacturing of automobiles. Formability is important in sheet metal forming of aluminium alloys. In the assessment of formability of sheet metals, stretch flangeability or edge formability is an important aspect in application such as flanges or plunged rims. The stretch flangeability refers to the ability to avoid cracking during hole expansion and it is evaluated by performing the hole expansion test. Besides material properties, hole making process also influences the stretch flangeability of aluminium alloys. In this work, the stretch flangeability of two Al-Mg alloys has been investigated through hole expansion tests by using three different hole making techniques namely punching, water jet cutting and laser cutting. The stretch flangeability of aluminium alloys has been compared with that of a high strength steel (Dual phase steel of grade DP600) which is more commonly used steel for stretch flanging applications.

Effect of rolling reduction on microstructure and tension-compression yield asymmetry of rolled AZ31 magnesium sheet

Magnesium (Mg) alloys have been receiving significant applications in automotive and aerospace industries owing to its high strength-to-weight ratios. Approximately 30 % (by weight) of material used in automobiles are in the form of sheet metal. Therefore, in the present work AZ31 magnesium (Mg) alloy was hot rolled with different reduction ratios to produce Mg sheet. The results revealed that employing a 40 % reduction per pass led to a remarkable 92 % reduction in thickness, outperforming the 82 % reduction achieved with a 20 % reduction per pass, along with fine grain of 8 μm. Investigation has been conducted on the relationship between grain size and its impact on the tension-compression yield asymmetry in Mg sheet. This investigation unveiled that the suppression of {101‾2} extension twinning mode of deformation due to the back stress imposed by the simultaneous action of grain boundaries and twin overlap, effectively minimizing the asymmetry from 2.11 (as received AZ31 alloy) to 1.13 (5th pass rolling sheet). The study extensively explored the underlying mechanisms governing the yield asymmetry behavior of AZ31 Mg sheets. These mechanisms included strain hardening tendencies, Schmid Factor, and KAM (Kernel Average Misorientation) assessment, all of which were interconnected with microstructural attributes.

The Pd/ZrO2 catalyst inversely loaded with various metal oxides for methanol synthesis from carbon dioxide

The selectivity and stability of catalysts for methanol synthesis from CO2 still remain to be enhanced. In this work, we synthesized a series of Pd/ZrO2 catalysts inversely loaded with various metal oxide promoters (ZnO, In2O3, and CeO2), those would partially cover Pd metal surface and form some new metal-promoter interface, to explore the nature in the performance of CO2 hydrogenation to methanol. The catalyst synthesized by this approach could limit the growth of Pd particles during the reduction and form new metal–metal oxide interfaces with different functions of CO2 hydrogenation, improving the reaction performance of Pd-ZrO2 catalysts. As a result, the ZnO-Pd/ZrO2 catalyst exhibited the highest CO2 conversion (12.0 %), methanol selectivity (95.6 %), and STY of methanol (472 gMeOHkgcat-1h−1), with excellent stability. The results of HRTEM, H2-TPR, XPS, and XAFS showed that the ZnO-Pd/ZrO2 catalyst had the typical Pd-ZnO interface with Pd2+ species after the H2 reduction, which could enhance the adsorption and activation of CO2. In addition, the in situ DRIFTS and NAP-XPS results implied that the Pd-ZnO interface significantly improved the formation of formate (HCOO*) and methoxy (H3CO*) species, which were considered to be the key intermediates of methanol generation, and thus greatly enhanced the selectivity of methanol.

Numerical and experimental investigation of direct rapid tooling for sheet metal forming using selective laser sintering

The rapid tooling approaches were most sought after for the low-volume production of sheet metal parts within a short duration. This study presents an investigation of direct rapid tools produced with Selective Laser Sintering (SLS) for sheet metal forming. SLS is one of the widely used additive manufacturing techniques to produce polymer parts. The ability to form the sheet metal components using SLS direct rapid tools was assessed through cup drawing from aluminium blanks. A full factorial experiment was formulated to design the tools by varying the punch radius, die radius and draw ratio. The tools were fabricated with SLS using glass bead - filled polyamide material (PAGF) and finite element analysis was employed to study the stress distribution. The stress concentrations were observed at the tool edge radius, yet the PAGF tools sustained the load from the cup drawing process. The inspection of the PAGF tools and drawn cups shows that they are sensitive to the edge radius and draw ratio. Wear at the edge radius was evaluated in terms of percentage deviation from the initial radius. While the designed dimension of the edge radius is a significant factor affecting respective tool edges, the die edge wear was also influenced by the draw ratio. Both the formed parts and the tools exhibit geometrical variations localised to the forming edges and demonstrate good repeatability even up to 200 draw cycles.

Optimizing Reverse-Engineered Finite Element Models for Accurate Predictions of Experimental Measurements

This study investigates the challenges of reverse engineering in finite element modelling of sheet metal forming, specifically for the Volvo XC90 front door inner component. Advanced models incorporating anisotropic behaviour of steel and non-linear friction are compared against actual real-world measurements. The methodology involves simplifying complex continuous parameters into more manageable representative data sets and assessing model accuracy under both uniform and varied blank holder force settings, guided by measured contact pressure distributions. Although the results indicate an improvement in accuracy, they underscore the need for additional methodological improvements and more accurate replication of tooling effects to enhance the fidelity and effectiveness of these models.

Study on electric pulse effect on steel DP780 during roll forming

The electrophysical impact on metals introduces a novel optimization avenue for roll forming. This study explores the influence of different electric pulse parameters (peak current and frequency) on the roll forming behavior of DP780 high-strength steel. Through electric pulse-assisted tensile, bending, and roll forming experiments, coupled with microstructure and fracture morphology analyses, the study comprehensively assesses the impact of electric pulses on the mechanical properties and springback mechanism of DP780 sheets. Results indicate that electric pulses reduce deformation resistance and enhance the plasticity of DP780 sheets by repairing defects, promoting dislocation slip, and changing the fracture form of the material. Moreover, electric pulses effectively inhibit springback in roll forming, particularly at larger bending angles and under specific E-pulsing parameters. This is attributed to the promotion of residual stress release by electric pulses, leading to a reduction in springback. In conclusion, electric pulse assistance optimizes the roll forming process of DP780 high-strength steel, evidenced by decreased deformation resistance, improved material plasticity, and effective suppression of springback. These findings open up a new optimization pathway for sheet metal forming.

Sustainable tool technology: Wood-based forming tools for deep drawing of sheet metal

In order to improve adaptability to evolving manufacturing processes in an era marked by mass customization and individualization, while also meeting geopolitical climate objectives, it is necessary to employ more sustainable methods in sheet metal forming to enhance flexibility. Metal based rigid tooling systems require a lot of material and energy resources, when aiming for high flexibility and scalability with respect to small batch size production. To reduce the overall resource consumption and to meet climate restrictions, non-metallic tooling approaches can counteract these issues when aiming for individualization in sheet metal forming. Compared to conventional metal-based tooling approaches, wood-based forming tools may enable a potential resource reduction (e.g., carbon footprint) and offer an alternative tooling approach for sheet metal forming. Although the mechanical performance of wood is lower compared to conventional tooling steel, certain wood-based forming tools can potentially be implemented for sheet metal forming. In this work a feasibility study of wood-based tooling materials is executed to investigate the mechanical performance on drawn sheet metal parts in a deep drawing operation. Different composite structures are investigated for wooden forming tools of black locust (robinia pseudoacacia).

Experimental Study of Partial Replacement of Cement with GGBS and Silico Manganese with M30 Grade Concrete

Abstract: Cement in concrete is a several disadvantages when used without any replacement to it in concrete such as high carbon footprint high cost of construction, and low tensile strength. To address these materials such as GGBS, and silico manganese can be used, designing concrete mixtures with lower cement content can reduce the carbon print, cost, and potential cracking, resulting in more sustainable, cost effective and durable concrete structures. In our project we are going to use GGBS (Ground granulated blast furnace slag) and silico manganese as a replacement of materials to cement in varying percentage. GGBS and silico manganese cementitious properties and can particularly replace cement in concrete mixtures. It improves the durability, workability, and strength of concrete. GGBS has a lower carbon footprint than traditional cement, making it an environmentally friendly alternative. Silico manganese is the process involves high temperature to melt the raw materials and reduce them to their metallic forms. This project represents the results of an experimental investigations accomplish to understand the suitability of GGBS and Silico manganese on strength of referral concrete M30 Grade concrete was prepared by replacing PART OF 0%, 30%, 40%, 50% (by weight of cement) for GGBS and Silico manganese. Fresh concrete was properties viz. slump cone was carried out. Strength of concrete were determined by performing compressive strength test on (150mm×150mm×150mm) size cubes.

DOCUMENTATION OF CASE REPORT ON CLINICAL SAFETY CONCERNS OF AYURVEDIC POLY HERBO-MINERAL DRUGS

Heavy metals in Ayurvedic formulations have been used for centuries with claimed efficacy and safety. In the past few decades, although Ayurveda has gained popularity in the health care system, it has also been under the scanner for its safety and quality aspects of specific formulations due to the toxicity involved, especially of Herbo-mineral preparations containing heavy metals and other elements which is often alarming. Here, we are reporting a case of a male patient aged 53 years who presented to our CARI OPD with a pre-diagnosed case of diabetes for eight years. He was on Allopathic oral hypoglycemic drugs, but due to poor glycemic control, he also opted for Ayurvedic treatment. He was treated with Nishamalaki, Chandraprabha vati, and Ashwagandha for seven months and Sutashekhara rasa for three months. As the patient was concerned about the toxic fate of the drug due to the prolonged use of both Allopathic and Ayurvedic medicines, he got lab investigations done for 22 toxic elements like Arsenic, Mercury and Lead to evaluate the toxicity of the drugs. The reports showed that all toxic elements, including safety profiles, were within the average value. The heavy metals used in the Ayurvedic formulations are not delivered in elemental form. The formulation's physicochemical state differs from that of the natural heavy metal form. Furthermore, they are subjected to samskara (processing), which contributes to the purification, detoxification, and restoration of their therapeutic properties, making them safe for consumption.

Study of Anisotropic Behavior in Sheet Metal Forming.

Since sheet metal exhibits significant anisotropy in processing and forming, which has a significant impact on its performance during processing, forming, and use, we explore the anisotropic behavior of materials in the forming process of sheet metal. The ability of the Yld2000-2d criterion to describe anisotropic behavior is analyzed, and its accuracy for characterization of the anisotropic behavior of metal plates is improved, based on which anisotropic behavior is predicted in three-dimensional space. Theoretical and experimental results on the anisotropy of sheet metal are compared, and two materials, 5754O aluminum alloy and DP980 steel plate, are tested and analyzed, and the anisotropic behaviors, such as three-point bending and cylindrical deep-drawing, are well predicted.

THE ROLE AND PERSPECTIVE OF THE USE OF METAL NANOPARTICLES IN THE CULTIVATION OF AGRICULTURAL CROPS

The development of the nanoindustry over the past 15-20 years allows us to consider substances containing nanomaterials as an alternative to existing chemical means of control in the cultivation of agricultural crops, in particular as components of mineral nutrition and protection of field crops. Taking into account the relevance of this issue, in recent years, the use of colloidal forms of metals as elements of micronutrient plant nutrition has been made and substantiated by our own research. Nanotechnology provides sustainable solutions by replacing traditional fertilizers with nanoparticles. These nanoparticles have unique properties to overcome bioavailability issues and enhance mineral uptake, increase yields and reduce fertilizer losses, helping to protect the environment. Recent studies emphasize the effect of nanoparticles of basic and essential elements on plant growth, physiology and development, taking into account their size, composition, concentration and method of application. Key aspects of the research include evaluating the effectiveness of methods of their use and the impact of nanoparticles on the nutritional quality of agricultural crops. It is noted that foliar fertilization with biogenic metals is important in providing plants with nutrients and enriching them with useful elements. Attention is also focused on the size of nanoparticles, as this factor determines their unique physicochemical properties and ability to penetrate plant cells, which can affect their physiological response and ability to absorb useful or toxic elements. The review presents the findings regarding the positive and negative aspects of nanoparticles, their impact on agricultural development and environmental sustainability. At the same time, emphasis is placed on the need for further research for the development of nanofertilizers aimed at improving food production and preserving the environment.

Performance Analysis of Multi-Point Incremental Forming Tool using Martensitic AISI 420 Sheet Metals

Incremental Sheet metal Forming (ISF) Process is a suitable process which helps to produce various parts used in automotive sector by rapid prototyping. This method of producing a prototype helps industry in reducing the production cost. In ISF process, a final product is evolved through local deformation of the sheet metal made by the tool. Usually better formability is obtained when the tool makes a better contact with the sheet metal throughout the process. Improved formability elevates dimensional accuracy of the product, thus increases the market value of the product. A new tool with multiple ball ends capable of making multiple mating points over sheet metal was used in this research to enhance the efficiency of formability and surface finish. Ability of the new Multi-Point Incremental Forming Tool (MPIF) was investigated and compared to the existing Single Point Forming Tool (SPIF) based on the formability and surface finish. Forming Limit Diagram (FLD), Strain Distribution (SD) and Scanning Electron Microscope (SEM) were used to examine the formability of the sheet metal. The SEM & 3D-Surface roughness profilometer were used to observe the sheet metals surface finish. In addition to these experimental techniques a simulation results were also used to predict the stress and strain rate during forming process. The experimentation and simulation outcome shows that the MPIF provides superior formability and surface finish.

Metallothermic reduction of Cerium Chloride in molten Salt using Li, Na, and Ca Metal

Options for reducing purified metal chlorides to metallic form were evaluated in support of the development of a metal purification process based on the conversion of impure metal via hydriding followed by chlorination. Metallothermic reduction of CeCl3 was tested using Li, Ca, and Na as reductant metals with and without a molten salt solvent in MgO and Y2O3-coated MgO crucibles. The effects of added reductant metal form, crucible material and dimensions, and mixture hold times above Ce melting temperature were studied. Direct contact of Li and CeCl3 was ineffective due to their immiscibility. A low-density alloy was formed between Li and Ce using Li in a LiCl solvent. Na was ineffective at reducing CeCl3 to any measurable degree. The highest percent recovery (71.4 %) and consolidation of Ce was achieved when using Ca in a CaCl2-NaCl solvent with 99.8 % removal of CeCl3 from the salt. Side reaction with MgO crucibles was found to be at least partially responsible for reduced Ce recovery.

Morphological distribution and risk assessment of soil heavy metals in the Belly of the Three Gorges Reservoir area in Chongqing-A Case Study of Fengdu

The study of the morphological distribution and pollution risk of heavy metals in the hinterland of the Three Gorges Reservoir area in Chongqing can be used to provide data support for soil pollution prevention and control, ecological environment safety risk control and agricultural healthy development in the region. In this paper, Fengdu County, the hinterland of the Three Gorges Reservoir Area in Chongqing, was taken as the study area. The total amount and morphology of 8 heavy metal elements in the surface soil of agricultural land were analyzed and determined. The geocumulative index method was used to evaluate the pollution degree. The risk assessment coding method is used to evaluate the potential risk level. The results showed that the average contents of heavy metal elements As, Hg, Cu and Cr in the soil in the study area were relatively low. The average contents of Cd, Zn, Pb and Ni were higher than those in the Three Gorges Reservoir area. The mean value of Cd content was 1.71 times that of the background value. Cd in the soil heavy metal form is dominated by ion exchange state. The proportion of carbonate-bound state and iron-manganese bound state is relatively high. The proportion of bioavailable state was 46.36%, and the biological activity was strong. The other elements are mainly in the stable residue state. The results of the geoaccumulation index method showed that Cd was mainly mild pollution level. The other elements are mainly clean and pollution-free levels. The evaluation results of the risk assessment coding method showed that the risk of Cd contamination was the highest, and the risk of contamination of other elements was relatively low. On the whole, there is a certain degree of potential pollution risk in the soil Cd in the study area. Attention needs to be paid to the prevention and control of Cd.

Electrocatalytic Nitrate and Nitrite Reduction toward Ammonia Using Cu2O Nanocubes: Active Species and Reaction Mechanisms.

The electrochemical reduction of nitrate (NO3-) and nitrite (NO2-) enables sustainable, carbon-neutral, and decentralized routes to produce ammonia (NH3). Copper-based materials are promising electrocatalysts for NOx- conversion to NH3. However, the underlying reaction mechanisms and the role of different Cu species during the catalytic process are still poorly understood. Herein, by combining quasi in situ X-ray photoelectron spectroscopy (XPS) and operando X-ray absorption spectroscopy (XAS), we unveiled that Cu is mostly in metallic form during the highly selective reduction of NO3-/NO2- to NH3. On the contrary, Cu(I) species are predominant in a potential region where the two-electron reduction of NO3- to NO2- is the major reaction. Electrokinetic analysis and in situ Raman spectroscopy was also used to propose possible steps and intermediates leading to NO2- and NH3, respectively. This work establishes a correlation between the catalytic performance and the dynamic changes of the chemical state of Cu, and provides crucial mechanistic insights into the pathways for NO3-/NO2- electrocatalytic reduction.

Green synthesis of gold nanoparticles using macroalgae Halimeda macroloba extract and their photocatalytic degradation of methylene blue and methyl orange

AbstractGreen synthesis of gold nanoparticles (AuNPs) is gaining attention of researchers because of their varieties of biomedical and environmental applications. This study reported the novel eco‐friendly synthesis of AuNPs using green macroalgae Halimeda macroloba (HM) extract and evaluate their photocatalytic potential. The green synthesized H. macroloba mediated gold nanoparticles (HM‐AuNPs) was characterized using UV–visible spectrophotometry, Fourier‐transform infrared (FT‐IR) spectroscopy, transmission electron microscope (TEM), scanning electron microscope‐energy dispersive spectroscopy, x‐ray photoelectron spectroscopy (XPS), and particle size distribution (PSD) anlaysis. The UV–visible spectrum shows a sharp intense plasmonic resonance peak at 543 nm. The bioactive compounds present in HM were primarily responsible for the biological reduction of gold ions validated by FT‐IR analysis. XRD analysis proved the crystalline face centered cubic structure of the HM‐AuNPs. The average particle size of 18.72 nm and morphological evidences were obtained from the images from TEM. The metallic form of biosynthesised HM‐AuNPs was confirmed by XPS results with a distinctive binding energy. The photocatalytic degradation ability of the green synthesized HM‐AuNPs was investigated against the methylene blue (MB) and methylene orange (MO) dyes under sunlight irradiation. The HM‐AuNPs exhibited 97.23% and 89.91% photocatalytic activity against MB and MO after 90 min of exposure to sunlight, respectively. The overall results of this research indicate that H. macroloba mediated HM‐AuNPs can be used as an effective option for the degradation of industrial dyes.

Геохимическая оценка системы «поверхностная вода – донные отложения» в зоне горнопромышленного техногенеза

Introduction. Tailings dumps are the most common by-product of the process of extracting valuable minerals and metals from mined ore. Their placement is accompanied by a violation of the natural properties of natural landscapes, changes in the geochemistry of soils and the hydrochemistry of the aquatic environment, the accumulation of heavy metals and toxicants in depositing media. The issues of geochemistry and stability of landscapes, the safety of natural and technical systems, the identification, study, assessment and forecast of their development in the conditions of increasing techno genesis is an urgent global problem. One of the most important directions in the geochemistry of mountain landscapes and mining and industrial ecology is the purposeful study of the relationship and interdependence of the processes of technogenic geochemical migration of the main and associated ore-forming elements into the environment with the technological processes of ore extraction and processing. The development of scientifically-based principles for the organization of control and monitoring of disturbed geo-systems in the conditions of techno genesis is not only an important fundamental research task, but has practical significance in order to preserve natural landscapes and mountain geo-systems. Purpose of research. Geochemical assessment of the “surface water-bottom sediments” system in the area of a copper-molybdenum deposit. Materials and methods. The research methodology is based on the theoretical foundations of landscape geochemistry. The object of the study is the system “surface water-bottom sediments” in the zone of technogenic influence of the tailings dump of a copper-molybdenum deposit. Field and standard physical-chemical methods, Excel graphics, geo-information analysis, 3D modeling Statistica were used. Discussion. Geochemical testing of the surface river in the tailings storage area revealed a significant enrichment of the aquatic environment with salt ions, which enter the surface water in the form of dam filtrate. The violation of the ratio of alkali metal ions, as well as the ratio of alkali-earth metal ions to alkali metal ions, which is a geochemical anomaly for fresh surface natural waters, is shown. As a result of constant filtration through the body of the tailings dam, heavy metals also enter the river water, primarily Cu, Mo, Fe, which, under conditions of an alkaline water environment, accumulate mainly at the bottom of the watercourse in the form of insoluble deposits. The coefficients of accumulation of metals in bottom sediments relative to clerks are obtained. The spatial dynamics of their distribution and variability along the riverbed are revealed, which makes it possible to predict the development of the situation in the zone of mining and industrial techno genesis. 3D models of the distribution of the analyzed metals from the properties of the pH medium, the main regulating factor of the formation of various forms of heavy metals, are obtained. Conclusion. It is shown that the hydro-geochemical features in the “surface water – bottom sediments” system of the river in the area of the tailings dam inherit chemical ore occurrence during Cu, Mo, Fe extraction. This indicates a technogenic transformation of the hydrosphere in a zone with a predominance of mining and industrial specialization of the deposit. The results obtained are of scientific interest as an empirical model for studying the process of formation of sedimentary ores, which, in turn, represents a fundamental aspect for the development of the theory of subsoil development design and studying the processes of formation of technogenic deposits.