Manufacturing Production Research Articles

Minimising makespan in distributed assembly hybrid flowshop scheduling problems

To enhance the manufacturing flexibility, resilience, and production efficiency, the integration of scheduling for distributed manufacturing with assembly systems has become a pivotal driver of production planning evolution. In this research endeavour, we present a Mixed-Integer Linear Programming model and an innovative Iterated Epsilon-Greedy Reinforcement Learning algorithm to address the distributed assembly hybrid flowshop scheduling problem. Empirical validation, conducted through computational experiments on a benchmark problem set, is used to gain important managerial insights. The computational results demonstrate that the proposed algorithms significantly reduce the makespan for the addressed problem. This study has the potential to make valuable contributions to ongoing research endeavours within the realm of multi-stage shop scheduling, an area that continues to warrant progressive advancement.

Multiresponse optimisation and process capability analysis of chemical vapour jet machining for the acrylonitrile butadiene styrene polymer: Unveiling the morphology

Abstract The implementation of three-dimensional (3D) printing technology has culminated in a notable rise in productivity and operational effectiveness for manufacturers. Additive manufacturing (AM) is a manufacturing technology that implies an alteration from the conventional approach of material removal. The fundamental idea underlying the AM technique is the gradual buildup of layers (layer-on-layer accumulation). In conventional approaches, every component can have detrimental implications due to the direct interaction between the tool and the workpiece, leading to the loss of heat through friction. The utilisation of 3D printing as a way to surpass conventional processing methods signifies a novel development in several sectors. This method involves the utilisation of unconventional techniques for the fabrication of components. The primary objective of this research is to investigate the chemical vapour jet drilling technique specifically applied to acrylonitrile butadiene styrene (ABS) materials. The intent is to enhance the surface characteristics, or surface finish (SF), and the dimensional accuracy (DA) of ABS workpieces. An evaluation regarding the reliability, repeatability, as well as preciseness of the vapour jet drilling (VJD) process is conducted via the utilisation of experiment and data analysis. The study employed a Taguchi L9 design of experiments to carry out a series of tests aimed at analysing the implications of three independent variables: pressure, flow rate, and standoff distance. The researchers employed a multiresponse optimisation approach to attain an optimal combination of parameters that resulted in a superior SF with DA. Consequently, the overall appeal of the outcome was reached. The process’s capabilities and dependability were assessed by conducting tests on the substrates at their optimal settings. Surface roughness and circularity were measured at numerous locations on the substrates. The study determined that the process capability indices (C p and C pk) had values over 1.33 for each of the response parameters, with C pk values also exceeding 1. The analysis of histograms and capability indices demonstrates that the VJD method, when conducted under optimised conditions, may be categorised as statistically controlled for the processing of ABS materials.

An effective hybrid meta-heuristic method for the simultaneous batch production and transportation problem in additive manufacturing

One notable advancement in additive manufacturing (AM) is the mobile mini-factory, which uses a truck equipped with an AM machine to produce orders while en-route to customers' locations. This offers potential benefits such as reduced delivery times and storage expenses for companies. This study investigates a simultaneous batch production and transportation problem (denoted by SBPTP) in additive manufacturing. To solve this problem, a mixed integer linear programming (MILP) model is first formulated. Then, to solve large-scale problems, a meta-heuristic method (denoted by SA-CP) combining a simulated annealing (SA) algorithm, an ant colony optimisation algorithm (ACO) and a cutting-plane algorithm is developed, in which the assignment subproblem is dealt with the SA, the simultaneous production and transportation subproblem is dealt with the ACO, and finally the current solution is further improved by the cutting-plane algorithm. Computational experiments are conducted on both randomly generated instances and modified benchmark instances. The results demonstrate that the SA-CP is very effective since it can obtain the solutions with an average relative percentage gap 0.16% on randomly generated instances and −0.09% on modified benchmark instances within less than 180 CPU seconds, compared to those obtained by solving the MILP model directly with CPLEX within 1 h.

Toward industry 5.0: Challenges and enablers of intelligent manufacturing technology implementation under the perspective of sustainability

The advancement of intelligent manufacturing technology in the era of Industry 5.0 has propelled the intelligence and automation of manufacturing production, while also exerting a significant impact on sustainable development of the manufacturing industry. However, the challenges and enablers faced by the transformation of intelligent manufacturing technology in the context of sustainable development of Industry 5.0 are still unclear. Based on literature review and expert opinions, this study uses the Likert scale to determine the challenges and enablers of the implementation of intelligent manufacturing technology in social, environmental and economic sustainability. The fuzzy-DEMETAL and AISM are used to analyze the logical relationship and hierarchical relationship between the above factors, and the MICMAC matrix is used to determine the key influencing factors. The research conclusions show that the most important challenges affecting the implementation of intelligent manufacturing technology are cost and funding, and the most important enabler is social benefits and public service improved. This research will provide insights for industry practitioners and decision makers in the management and decision-making process of implementing the transformation and upgrading of manufacturing intelligent manufacturing, thereby enhancing the sustainability of manufacturing development.

GDP growth in Brazil after the liberalising reforms

ABSTRACT The Brazilian economy implemented the trade and financial liberalisation reforms in the first half of the 1990s as a new development strategy. Since then, Brazilian GDP has been unstable and much lower compared to the previous period. Despite this, there was a short period of relatively higher economic growth rate from 2004 to 2008, but the Brazilian economic growth decelerated after 2011; the country entered a recession between 2014 and 2016, and then in a stagnation period from 2017 onwards. The aim of this article is to analyse the Brazilian economic performance after the liberalising reforms and evaluate the reasons the Brazilian economy decelerated after 2010. To do so, we consider the importance of manufacturing production to a country’s economic performance and analyse this relationship for the specific case of Brazil, checking the contribution of the manufacturing production growth to the country’s GDP growth in circumstances of increases and decreases in GDP growth. To complement this analysis, we also evaluate the existence of increasing returns to scale. The results show that manufacturing production growth is still important for the Brazilian economic performance, especially to explain the moments when the country’s GDP decreases.

Fabrication and control architecture of novel hybrid metal additive manufacturing incremental forming technology

Hybrid manufacturing processes redefine production dynamics by harnessing the synergistic interplay between process mechanisms, energy sources, and tools to impact manufacturing quality, productivity, and sustainability significantly. Accordingly, this article focuses on hybrid additive manufacturing incremental forming, where additive manufacturing and incremental forming are integrated in a unified setup, driven by a single power source. This integration opens avenues for innovative component and production design, capitalizing on the strengths of both methods while mitigating drawbacks. The fabrication of the hybrid additive manufacturing incremental forming setup involves crucial components like a hybrid extrusion forming unit, supporting plates, hopper-barrel assembly, band heaters, solenoid setup, and a comprehensive control architecture. Addressing challenges, particularly overheating in the hopper, and feeding zone, ensures effective material transformation with the hybrid extrusion forming unit. The subsequent section provides analytical analysis and validation of the hybrid extrusion unit. This technology enhances the entire process and addresses issues related to metal additive manufacturing, such as porosity and material shrinkage. The maximum tensile force sustained in hybrid additive manufacturing incremental forming before fracture demonstrates a notable enhancement of about 20% from 670 N in additive manufacturing to 805 N in hybrid additive manufacturing incremental forming. It also removes micro-cracks, and voids, and improves the inter-layer bonding, as observed through scanning electron microscopy. The results highlight hybrid additive manufacturing incremental forming's superior enhancement of mechanical properties and surface quality compared to traditional additive manufacturing approaches.

An Examination of Technical Efficiency of MSMEs Industries in Haryana: A Case Study of Faridabad District

India's economy's micro, small, and medium-sized enterprises (MSME) sector produce several goods. One of the most accurate ways to characterize the Industrial Sector is by its technical efficiency, which allows it to sustain a high level of manufacturing production. An investigation of the productivity and efficiency of micro, small, and medium-sized firms (MSMEs) in the industrial sector of Faridabad, Haryana, is carried out using parametric frontier analysis. Within the context of his essay on efficiency evaluation, which was published in 1957, Farrell presented various approaches for examining productivity and efficiency. The function that determines the creation of the stochastic frontier. We use a multistage estimation technique that incorporates four distinct error components to arrive at reasonable estimates. From 2016 through 2022, the data from the Ministry of MSMEs and the organization that is part of the state government were utilized. An investigation into the machinery and equipment that is utilized by micro, small, and medium-sized firms will be carried out as part of this study.

Adopting Industry 4.0 technologies through lean tools: evidence from the European Manufacturing Survey

PurposeIn recent years, the emergence of Industry 4.0 technologies as a way of increasing productivity has attracted the attention of the manufacturing industry. This study aims to investigate the relationship between Industry 4.0 technologies and lean tools (LTs) by measuring how the internalisation of LTs influences the adoption of Industry 4.0 technologies and how the synergy between them helps improve productivity in European manufacturing firms.Design/methodology/approachResults from 1,298 responses were used to analyse linear regression and study the correlation between the use of LTs and Industry 4.0 technologies.FindingsResults show that the companies analysed tend to implement more Industry 4.0 technologies when their level of lean internalisation is high.Originality/valueThis study provides useful information for managers of manufacturing firms by showing the correlation between LT internalisation and Industry 4.0 technologies, corroborating that optimal implementation of these technologies is preceded by a high level of LT internalisation. Furthermore, although there are studies showing the relationship between LTs and Industry 4.0 technologies, none consider the intensity of their implementation.

Residual Stresses in Wire Arc Additive Manufacturing Products and Their Measurement Techniques: A Systematic Review

Residual Stresses in Wire Arc Additive Manufacturing Products and Their Measurement Techniques: A Systematic Review

Logistics input complexity and comparative advantage in manufacturing: based on the perspective of global value chains

ABSTRACT Logistics is an essential service for manufacturing because it supports the coordination and integration of global production activities, ultimately reducing costs and improving efficiency. However, it is not clear that the complex structural relationship between logistics and manufacturing under the Global Value chains (GVCs). Consequently, employing the input-output model, we develop the logistics input complexity (LIC) to capture the complex structural characteristics of logistics services embodied in manufacturing sectors and investigate its role in manufacturing comparative advantage. We find that the logistics input complexity can boost manufacturing competitiveness. Furthermore, we also confirm that the domestic and foreign groups of LIC have at least a partially complementary effect on the export competitiveness of manufacturing. Finally, we identify heterogeneity in the domestic and foreign groups’ five subdivision logistics modes of LIC. It suggests that logistics service providers must precisely match the related manufacturing production chains to cultivate a comparative advantage in manufacturing.

Cerminan Kearifan Lokal dalam Leksikon Kerajinan Keramik pada Masyarakat Pengrajin Keramik Desa Klampok, Kabupaten Banjarnegara

This study examines the typical lexicon and its meanings in Banjarnegara ceramic crafts, as well as the local wisdom reflected in this tradition. The research addresses the changes in ceramic production over time, including equipment, production conditions, and socio-economic factors, which pose threats to both the craft and its associated language. Using qualitative descriptive methods, data was collected through library study, observation, and interviews with ceramic craftsmen. The study analyzes monomorphemic, polymorphemic, and word combination lexicons related to the manufacturing process, tools, materials, products, and terminology. Semantic theory is applied to uncover the meanings within the lexicon. The research identifies 47 lexicons (31 monomorphemic, 10 polymorphemic, and 6 word combinations) and reveals local wisdom values such as the ability to process natural resources and clay, patience, precision, and tenacity. This study contributes to the preservation of linguistic and cultural heritage associated with Banjarnegara ceramic crafts.

The Role of Ceramic Materials in Surface Modification of Cutting Tools - A Review Paper

A modification cutting tool is a type of cutting tool that can be altered or adjusted to change its cutting properties. This can include changing the angle or shape of the cutting edge, adjusting the depth of cut, or modifying the material or coating used on the tool. These modifications allow for greater precision and efficiency in cutting operations, particularly in industries for manufacturing and construction different products. Ceramic materials can be used in coatings to provide a variety of benefits, such as corrosion, wear resistance , and thermal insulation. They also offer high hardness, low friction, and chemical stability. Ceramic coatings can be applied to various substrates including metals and ceramic. Modification of cutting tools using nanomaterial deposition is a promising approach to enhance their performance and durability. The process involves depositing one or more layer of nanosized particles onto the surface of the cutting tool, which can improve its mechanical, thermal, and tribological properties. Keywords: Ceramic materials ; coating ;cutting tools; coating process.

Analysis of employee performance through productivity: The role of kaizen culture, motivation, and work discipline in the manufacturing industry

Purpose: This study investigates the relationship between employee performance and productivity in the manufacturing industry, focusing on the impact of Kaizen culture, motivation, and work discipline on employee performance. Research Methodology: The study employed a quantitative method approach, which involved a survey of 105 respondents from the manufacturing Industry in West Java, and the analysis of key performance indicators from several pilot case companies in Bekasi that implemented Kaizen techniques. Data were analyzed using the SmartPLS test. Results: Kaizen culture, motivation, and work discipline are vital for improving employee performance and productivity. Employee motivation directly influences the implementation of the 5S system, and the company meets employees’ needs for career development and information. Employee performance is influenced by motivation, discipline, training, and culture, with productivity as the mediator. Limitations: The generalizability of this study is limited by its focus on a specific industry and geographic location. Future studies should replicate the study across different industries and regions to increase the scope of the findings. Contribution: This study contributes to the current literature by examining how Kaizen culture, motivation, and work discipline boost employee performance and productivity in manufacturing. The results underscore the significance of these elements in enhancing organizational performance and offer practical suggestions for companies that aim to enhance productivity and employee engagement. Originality: This study is unique in its thorough examination of how Kaizen culture, motivation, and work discipline affect employee performance and productivity in manufacturing. Using quantitative methods and diverse data sources enhances originality and offers a deeper understanding of these factors.

A multiple criteria decision analysis approach for assessing the quality of hardwood species used by Greek timber industries

Abstract Timber industries make an essential contribution to economies worldwide, while the sustainable supply of timber generates revenue, supports employment, and contributes to economic activity. The strategic choice of wood species using specific criteria can have substantial economic outcomes for the timber industry in Greece. This study assessed the suitability of hardwood species most commonly used by Greek timber industries. The assessment was conducted with the use of a Multiple-Criteria Decision Analysis approach, taking into consideration specific criteria that affect the quality of timber. According to the findings, walnut was the optimal alternative that outranked the other examined species. Chestnut, oak, beech, ash, and hornbeam also achieved positive scores, and therefore, they are also acceptable alternatives as broadleaved species suitable for furniture manufacturing and sawn timber production. Greek timber industries can enhance their products’ value and market appeal by focusing on species that meet high-quality standards and consumer preferences.

The issues of development and functioning of common market of medical equipment and articles within the framework of the Eurasian Economic Union

The market of medical devices within the framework of the Eurasian Economic Union is regulated by special legislation that ensures formation of common market and compliance of products with all necessary requirements. This allows to ensure high level of quality of medical equipment and articles that contributes into improving safety and efficiency of medical procedures. The development of uniform requirements, considering world practices, is an important step, since it allows to guarantee high standards not only at level of single states, but also at level of the entire Union. This approach facilitates reinforcement of confidence to medical production of manufacturers from he Eurasian Economic Union countries. The article examines normative legal base regulating issues of formation and functioning of common market of medical equipment and articles within the framework of the Eurasian Economic Union. The analysis of normative legal base of the Russian Federation in section related to medical articles market was carried out. The analysis of the regulatory framework of the Russian Federation in terms of issues related to the market of medical devices was also carried out. The corresponding conclusions were made based on the study results.

Impact of Producer Prices on Manufacturing Productivity in the Era of Pre- and During-Inflation Targeting in South Africa

Impact of Producer Prices on Manufacturing Productivity in the Era of Pre- and During-Inflation Targeting in South Africa

MARKETING PERFORMANCE OF GREEN PRODUCT MANUFACTURING COMPANY – A STUDY

BJCL is a pioneer jute manufacturing company in India. Jute is a natural product and has important economic value as a green manufacturing area. Various types of jute goods like jute yarn, twine, packaging bags, fine quality fabrics, carpet backing clothes are the important green manufacturing products of such a company. Salable production and dispatched data from various months has been studied and found that domestic marketing performance of the industry is rising. The demand for various jute goods has been increasing. Demand for jute bags and clothes in the domestic market as a packaging material has been significantly improved by the industry. It is found that salable production was comparatively less in the years 2020-21 due to the pandemic years. Salable production was comparatively higher in the year 2022-23 compared to 2021-22. From June 23 to September 23, salable production was gradually increasing. It is the continual improvement of the unit. It proved that BJCL months have been improving continually over the months and years too. It is found that the total number of finished bales of 500 bags in each bale has been increased from May 23 to August 23. Increasing trends of finished bales dispatch status of sacking quality were observed. This jute products study period was from October 2020 to March2023. In the study period of May 23 to August 23, the total number of bales dispatch status was increased from 299 to 1244 for Hessian quality of jute products

Perhitungan Ongkos Pemesinan Konvensional Menggunakan Macro Vba Excel pada Studi Kasus (Produk Roda Gigi Payung Ø65mm × Z24)

In the conventional machining process, production costs are essential to know to determine the cost of making a product in any industrial manufacturing such as the SMK N 2 PEKANBARU machining workshop. Machining production costs are calculated based on machining time per product and machining operation costs. In calculating conventional machining costs, the VBA Excel macro is an application that can be used to calculate production costs. The Ø65mm × z24 umbrella gear product which is the research case study is a product that is machined by two conventional machining processes, namely lathe machining and milling machining. From the results of the research, the cost of conventional lathe machining, namely making gear wheels, is IDR 47,841/product, and the conventional milling process, namely making Z24 gears, is IDR 40,002/product, while the machining cost for lathe mastercam simulation is IDR 33,187/product and the machining cost for milling mastercam simulation is IDR 20,340/product. Machining costs are the product of operating costs per minute (cm) and machining time (tm). So, from the results of calculating machining and production costs, it is known that the product manufacturing costs or production costs for Ø65mm × Z24 umbrella gears are in the range of IDR 111,827 - IDR 146,143/product.

Analysis of manufacturers' dual‐source and dual‐channel strategies under the trend of brand weakening

AbstractIn the context of the world economic downturn, consumers are showing a trend of brand weakening. In order to explore the product advantages of the source manufacturer, that is, the competitive supplier, we establish a game theory model to study the strategy choice of original equipment manufacturers (OEM), competitive suppliers (CS), and noncompetitive suppliers (NS) based on consumer heterogeneity. By dividing consumers into quality consumers and ordinary consumers and considering horizontal competition (between suppliers) and vertical competition (between OEM and suppliers), it is found that the products of the source manufacturers are becoming more and more popular with consumers. Contrary to the traditional view, we find that under the trend of brand weakening, the products of the source manufacturers should be positioned above the price range acceptable to consumers, and the OEM products of the brand owners should be appropriately reduced. The interesting question is whether CS will discontinue the supply of OEM components once it has its own branded products. Further, we analyze that CS terminating the component sales business is an untrustworthy threat to OEM. Finally, we find that there will be a “win–win” zone between OEM and competing suppliers, and the “win–win” region will decrease as the manufacturing cost of the competing supplier increases and increase as the manufacturing cost of the noncompeting supplier increases.

Microstructural Characteristics of Modified ODS Ni-Based Superalloys Fabricated using Laser-Powder Bed Fusion

Oxide dispersion-strengthened (ODS) superalloys are usually manufactured by a hot isostatic pressing after mechanical alloying (MA-HIP). However, this process cannot produce complex-shaped parts. Here, we used an additive manufacturing product (powders produced by laser powder bed fusion, L-PBF) to address this issue. Modified ODS Ni-based superalloy powders with a similar composition to the mechanical alloy 6000 (MA6000) were manufactured using a gas atomization process. The obtained powders and L-PBF synthesized samples were analyzed by scanning electron microscopy (SEM), X-ray diffraction (XRD), LPSA, and EBSD analyses.