Waved-edge Milling Insert Research Articles

Study on Object Function of Milling Insert Adhering Disrepair for Machining the Refractory Steel

Based on the milling experiments for the difficult-to-machine material 3Cr-1Mo-1/4V steel, as the goal of minimal adhering disrepair, taking the waved-edge milling insert (the rake face is curve plane) developed by Harbin University of Science and Technology as an example, we have study on the optimization object function of the milling insert grooves. Based on the heat density function of the 3D complex groove milling insert, setting the heat density function as boundary conditions, we have the finite element analysis (FEA) on the temperature fields of different cutting parameters, and have fuzzy synthetical judgement on the temperature fields with fuzzy mathematic theory. We build the object function relation between the fuzzy synthetical judgement results and cutting parameters of the adhering disrepair, so to have groove design optimization. So provide the theoretic and technical basis for solving the adhering disrepair problem and groove optimization.

Experiment Study on Disrepair Principle for the Waved-Edge Milling Insert with Complex 3D Grooves

The impact disrepair and adhering disrepair of milling insert are the important factors that affect the normally running of the automated processing system. Based on machining the 45 steel, find out the difference of the impact disrepair invalidation types between the waved-edge milling insert and flat rake milling insert, build the impact disrepair life cumulating distribution function mathematic models by the mathematics statistic method and have contrast analysis of the impact disrepair average lives between them. Based on the experiments on milling the 3Cr-1Mo-1/4Vsteel, find out the difference of the adhering disrepair invalidation types between them, build the quantitative mathematic relation between milling temperature and maximal adhering disrepair depth on rake face, and analyze the rule that the milling temperature affects the adhering disrepair. All these studies provide the theoretic and experimental bases for the groove optimization.

Study on Object Function of Milling Insert Impact Disrepair Based on Stress Field Analysis

This article takes the waved-edge milling insert (the rake face is curve plane) developed by Harbin University of Science and Technology as an example, as the goal of minimal impact disrepair, the optimization object function of the milling insert grooves is studied. Based on the force density function of the 3D complex groove milling insert, we have the finite element analysis on the stress fields of different cutting parameters, and have fuzzy synthetical judgement on the stress fields with fuzzy mathematic theory. We build the object function relation between the fuzzy synthetical judgement results and cutting parameters of the impact disrepair, so to have groove design optimization. All these studies provide the theoretic basis for the groove exploitation and the cutter disrepair which is the key problem in the automatization production and groove optimization.

Analysis and Study on Single Physics Field and Coupling Field of Cutting Tools for Machining Carbon Structural Steel

Based on the experiments on milling the carbon structural 45 steel with the flat rake milling insert and the waved-edge milling insert, the analysis and study on single physics field and coupling field are studied. On the basis of the milling force and milling temperature mathematical models, the force density function and heat density function of the waved-edge milling insert are built, the stress fields analysis and temperature fields analysis have been done. In order to discuss the distribution principle of equivalent stress and distortion under coupling condition, the coupling analysis on the stress field and temperature field is done. All these studies provide the theoretic and experimental basis for solving the cutter disrepair and groove optimization technology.

Study on Dynamic Equation of Cut-In Contact for the Waved-Edge Milling Insert with 3D Complex Groove

Cut-in disrepair of milling inserts are closely related to dynamic equation of cut-in contact. According to the problem of serious cut-in disrepair, dynamic equation of cut-in contact for the waved-edge milling insert with 3D complex groove is studied. Rake face function of 3D complex groove waved-edge milling inserts is founded. Rake face equation of 3D complex groove inserts is founded. Rake face motion equation of 3D complex groove inserts is deduced. Appearance equation of workpiece machining region is deduced. Contact line (LM) equation is deduced, which is the contact line between rake face and workpiece cut-in side surface when rake face moving. Intersection line (C1D1) equation is deduced, which is the intersection line of cutting surface and side surface of workpiece. All the production above are the theory foundation for further researching the relationship between the cut-in style and cut-in disrepair, cut-in style optimization, 3D complex groove insert optimization.

Study on Distributing Principle of Force Density Function for Complex Three-Dimension Groove Milling Insert

Based on the milling force testing experiments on machining the carbon structural 45 steel, the study on the distributing principle of force density function for complex three-dimension groove milling insert with the waved-edge milling insert (the curve rake plane) developed by Harbin University of Science and Technology is studied. On the basis of the milling force mathematical model, the force density function of the curve rake plane is built by the milling force experiments and tool-chip contact area experiments. Having quantitative calculation on the force density function and programming, the distributing model of force density function is shown with 3D figure, so to analyze its distributing principle. All these studies will provide a theoretic base for the stress field analysis and solving the cutter disrepair which is the key problem in the automatization production and groove optimization.

Study on Simulation System of Cut-In Disrepair for the Milling Insert with 3D Complex Groove

The waved-edge milling insert is a kind of insert with 3D complex groove; its cut-in style and cut-in disrepair are different from the flat-groove insert. For researching the relationship between the cut-in style and the cut-in disrepair of the waved-edge milling insert, the cut-in simulation system of the waved-edge milling insert is developed, on the software of UG/Open API combined with VC++. By given different cut-in style parameters, the virtual cut-in process is founded and the proof is supplied for judging cut-in style and studying cut-in disrepair.

Study on Impact Disrepair Mathematic Model and Groove Optimization of Cutting Tools for Machining Carbon Structural Steel

Based on the theoretic analysis and experiments on milling the carbon structural 45 steel with the flat rake milling insert and the waved-edge milling insert with complex 3D grooves which is developed by HarBin University of Science and Technology, we have studied on the impact disrepair mathematic model and groove optimization. On the basis of the milling force mathematic model and force density function of the waved-edge milling insert with complex 3D grooves the author built, we have the finite element analysis and blurry synthetical judgement of the 3D stress field, and forecast that the anti-impact disrepair capability of the waved-edge milling insert is choiceness. We find out the difference of the impact disrepair invalidation types between different grooves milling inserts by the experiments. Based on the plentiful and systemic impact disrepair experiments, as the emphasis in this paper, we build the impact disrepair life cumulating distribution function mathematic model by the mathematics statistic method and have contrast analysis of the impact disrepair average lives between the two types of milling inserts, and prove that the anti-impact disrepair capability of the waved-edge milling insert is choiceness. All these studies provide the theoretic and experimental basis for solving the cutter disrepair which is the key problem in the automatization production and groove optimization.

Research on Heating Density Function and Temperature Field Mathematical Model for Milling Insert with 3D Complex Groove

Based on the milling temperature experiments and researches, we established the milling temperature mathematical model using dimension analytic method,and the heat density function and superficial heat density function of the flat milling insert and the waved-edge milling insert, whose rake face is wave curve plane and created by the authors using the diathermanous theory. We describe the mathematic model of the instantaneous temperature field by the theory of the finite moving planar sources of heat. At last, a program was done to calculate the heat density function and the milling temperature field. According to the calculated results and plotted graph, it is proven that the highest temperature is not on the knifepoint and host edge, in fact, it is offset from the host edge a certain space. So we can make the conclusion that the waved-edge milling insert’s cutting capability is higher than the flat milling insert’s which is consistent with the experimental result. All the studies above are the foundation for accurately describing the 3-D temperature field and optimizing groove.

Study on the Adhering Disrepair and Groove Optimization of Cutting Tools for Difficult-to-Machine Materials

In the course of the milling experiments with the difficult-to-machine material 3Cr-1Mo-1/4V steel, we have found the substance of the adhering disrepair. In addition, we forecast the predominant capability of the waved-edge milling insert with complex 3-D grooves by the synthetically blurry judgement. Eventually, we give the mathematical model between the milling temperature and the maximal adhering disrepair depth of the rake face, and analyze the rule that the milling temperature affects the adhering disrepair. What’s more, we testify the predominant capability of the waved-edge milling insert.

Study on Groove Optimization Technology Based on the Power Spectrum Analysis

Based on the milling force testing system, we have experimented with the waved-edge milling insert and the great milling insert developed by Harbin University of Science and Technology, the American Metal milling insert, the ISCAR hackle milling insert and the flat milling insert, and then compare the insert milling capability of various grooves milling inserts. We have discussed the dynamic milling force under the incontinuous cutting condition, especially the characteristic of time and frequency. Based on the power spectrum analysis of the five types of milling inserts, we have found that the insert whose groove is formed from the curve or curly plane of the period function has an advantage on minishing the milling force and resisting to vibration. The right insert geometry parameters have great effect on improving the cutting capability. By the power spectrum analysis, we found that the complex 3-D grooves milling insert is superior to the flat milling insert on minishing milling force and vibration. The analysis result proves that using power spectrum analysis in groove optimization is viable.