A Study on Microturning with Electrochemical Assistance of the Cutting Process

Grabowski, Marcin; Skoczypiec, Sebastian; Wyszyński, Dominik

doi:10.3390/mi9070357

Cited by 9 publications

(4 citation statements)

References 24 publications

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“…This steel is prone to generating edges on the cutting tool and does not break chips well, especially when the cutting depth falls into the minimal chip thickness zone and the "ploughing effect" becomes prominent. These challenges make machining of 1.4301 steel difficult, especially during microturning and milling processes [38]. Difficulties with the machining of the material prompted an experiment on the impact of milling machining.…”

Section: Introductionmentioning

confidence: 99%

Investigation of the Impact of Face Milling Parameters on the Roughness of the Machined Surface for 1.4301 Steel

Bembenek¹,

Dzienniak²,

Dzindziora³

et al. 2023

Adv. Sci. Technol. Res. J.

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The objective of this research was to analyze how different milling parameters impact the roughness of the surface produced during the machining process. Kinematic parameters, such as cutting speed and feed per tooth, as well as geometric parameters, such as axial and radial depth of machining, were considered in various configurations to determine which one had the greatest impact on the surface quality of 1.4301 stainless steel (also known as AISI 304, among other designations). This type of steel is commonly used in a number of industries, such as construction, automotive, food, chemical, decoration, oil, and petrochemical, owing to its favorable properties. It is also relatively cheap. The analyzed roughness parameters included Ra, Rq, Rz, Rt, which, considered collectively, provide a comprehensive picture of the overall surface quality. Based on the results, feed per tooth is the one parameter that was to a large degree responsible for the overall quality roughness of the surface of the analyzed samples. The remaining tested parameters also had an impact on the surface quality, which resulted in a dynamic increase or decrease in roughness (extremes), but not to the same degree as in the case of feed per tooth. At one point, for a relatively low axial depth of cut, a sudden increase in the resulting roughness was recorded.

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Section: Introductionmentioning

confidence: 99%

Investigation of the Impact of Face Milling Parameters on the Roughness of the Machined Surface for 1.4301 Steel

Bembenek¹,

Dzienniak²,

Dzindziora³

et al. 2023

Adv. Sci. Technol. Res. J.

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“…Electrochemical mechanical machining combines the electrochemical action and mechanical action, which can efficiently polish the surface of parts and improve the machining accuracy of parts to a certain extent [ 19 , 20 ]. Grabowski et al [ 21 ] found that electrochemical assistance can effectively improve the surface quality in the machining process by comparing the surface quality and precision of 1.4301 stainless steel after turning with or without electrochemical assistance. Ye et al [ 22 ] used a wedged end tube tool for electrochemical milling the deep and narrow groove of GH4169 nickel-based alloy and explored the wedge angle of the cutting tool to improve the electrolyte flowed field and machining quality through simulation.…”

Section: Introductionmentioning

confidence: 99%

Profile Evolution and Cross-Process Collaboration Strategy of Bearing Raceway by Centerless Grinding and Electrochemical Mechanical Machining

Yan

Fan

et al. 2022

Micromachines

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Roundness is one of the most important evaluation indexes of rotary parts. The formation and change of roundness in the machining of parts is essentially the formation and genetic process of profile. Centerless positioning machining is one of the main surface finishing methods of rotary parts. The rounding mechanism of centerless positioning machining determines its unique roundness profile formation and genetic characteristics. How to eliminate the roundness error of centerless positioning machining has become one of the important issues in the research of high-precision rotary part machining. This paper explores the influence of process parameters on the roundness error from the perspective of profile evolution during centerless grinding and electrochemical mechanical machining, with the aim of providing a cross-process collaboration strategy for improving bearing raceway accuracy. Through an experiment of centerless grinding, the influence law and mechanism of process parameters on the profile are discussed. On this basis, electrochemical mechanical machining experiments are designed to explore the variation rules and mechanisms of different profile shapes in the machining process. The cross-process collaboration strategy is studied, and reasonable parameters of centerless grinding and electrochemical mechanical machining are determined. The results show that in the centerless grinding stage, increasing the support plate angle can form a multiple-lobe profile with high frequency within a wide range of process parameters. Electrochemical mechanical machining can effectively smooth the high-frequency profile and appropriately expanding the cathode coverage can improve the roundness error and reduce the requirement of initial accuracy of a multiple-lobe profile workpiece to a certain extent. Therefore, the combined machining technology of “centerless grinding + electrochemical mechanical machining” provides an efficient technical means to realize the precision machining of rotary parts such as bearing raceways.

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“…Precision machining of difficult-to-cut materials can be supported by the electrochemical digestion process in the hybrid machining technology [12].The surfaces of the injection mold, especially the stamp and die surfaces, are exposed to cyclical cooling and heating. These phenomena adversely affect the formation of variable thermal stresses in the material and are the cause of formation of mesh of cracks over time, which ultimately leads to the withdrawal of the mold from further use.…”

Section: Introductionmentioning

confidence: 99%

Technological Possibilities of the Carbide Tools Application for Precision Machining of WCLV Hardened Steel

Grabowski¹,

Gawlik²,

Krajewska-Śpiewak³

et al. 2022

Adv. Sci. Technol. Res. J.

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Precision milling of free (curved) surfaces with the use of monolithic milling cutters is used in the production of hardened steel elements such as dies, molds, or press tools. Precision milling processes are carried out with the following milling parameters: axial cutting depth ap <0.3 mm, cutting width ae <0.5 mm and the required machining accuracy below 40 µm. The quality of the obtained surfaces in injection molds is directly transferred to the quality of the molded part. One of the key criteria for the manufactured elements is the surface quality which is mainly assessed by the roughness parameters. Due to the use of carbide tools high reliability and quality of machining is obtained which allows to eliminate the grinding process. In precision milling processes, due to the very small radius of the cutting edge and the cross-sections of the cutting layers, the conditions that must be met for the decohesion process to occur are fundamentally diff erent from macro-scale. The minimum value range of ap and ae parameters was determined in a carried-out experiment, which allows for stable and repeatable machining. The tests were carried out with double-edge shank cutters with a diameter of 6 mm on a workpiece made out of WCVL hardened steel 45-47 HRC. Recommended machining conditions have been defi ned to ensure the required technological quality of the surface layer. The research was fi nanced under the research project POIR.01.01.01-00-0890/17 co-fi nanced by the European Union from the European Regional Development Fund.

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A Study on Microturning with Electrochemical Assistance of the Cutting Process

Cited by 9 publications

References 24 publications

Investigation of the Impact of Face Milling Parameters on the Roughness of the Machined Surface for 1.4301 Steel

Investigation of the Impact of Face Milling Parameters on the Roughness of the Machined Surface for 1.4301 Steel

Profile Evolution and Cross-Process Collaboration Strategy of Bearing Raceway by Centerless Grinding and Electrochemical Mechanical Machining

Technological Possibilities of the Carbide Tools Application for Precision Machining of WCLV Hardened Steel

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