Formation and Simulation of Negative Shear Zone

Hai Jun Qu; J.H. Yang; Gui Cheng Wang

doi:10.4028/www.scientific.net/AMR.1027.217

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A Chemism Analysis of Alkali in the Chemical Mechnical Polishing Process of SiC Substrate
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Analysis of Chemical Action of Oxidants in Chemical Mechanical Polishing of SiC Crystal Substrate
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Study on the Removal Mechanism of Magnetorheological Finishing (MRF) by Using of Nano-Diamond Abrasives
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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 1027Formation and Simulation of Negative Shear Zone

Formation and Simulation of Negative Shear Zone

Abstract:

Cutting-direction burr/fracture is one of the important factors that influence the edge quality and performance of precision parts. The formation of negative shear zone decisions the edge quality of workpiece. A finite element model has been established to investigate the mechanism of negative formation in machining H64 brass. The negative shear zone formation process is simulated with rigid-plastic nonlinear finite element method. The cutting direction burr forms when the stress of principal shear zone great than it in negative, the cutting direction fracture forms when the stress of principal shear zone less than it in negative and there is a crack in the area near the tool tip and grow along the negative shear zone .

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Periodical:

Advanced Materials Research (Volume 1027)

Pages:

217-220

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.1027.217

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Online since:

October 2014

Authors:

Hai Jun Qu*, J.H. Yang, Gui Cheng Wang

Keywords:

Burr Control, Crack, Cutting Direction Burr, Negative Shear Zone

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