Numerical Study of the Effect of Tool Wear on Burr Formation in Blanking Process

Juan Zhang

doi:10.4028/www.scientific.net/AMR.53-54.95

Paper Titles

Finite Element Modeling of Burr Formation in Orthogonal Metal Cutting
p.71

Formation and Simulation of Two-Side Burr in Orthogonal Cutting
p.77

Study on Burr Formation in Face Milling of Stainless Steel with Chamfered Cutting Tool
p.83

The Effect of Shear Strain on Transformation between Burr and Negative Burr
p.89

Numerical Study of the Effect of Tool Wear on Burr Formation in Blanking Process
p.95

Transformation of Cutting Burr/Fracture in High-Speed Machining Al Alloy
p.101

Polishing of Free-Standing CVD Diamond Films by the Combination of EDM and CMP
p.111

Analyzing on Nonuniformity of Material Removal in Silicon Wafer CMP Based on Abrasive Movement Trajectories
p.119

Friction-Based In Situ Endpoint Detection of Copper CMP Process
p.125

HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 53-54Numerical Study of the Effect of Tool Wear on Burr...

Numerical Study of the Effect of Tool Wear on Burr Formation in Blanking Process

Abstract:

Numerical simulation of the blanking process of a sheet metal, i.e. the formation of roll-over and a burnished surface, and crack initiation and propagation, is done using an elastic plastic finite element model. The Normalized Cockcroft and Latham’s expression is used as a ductile fracture criterion. Numerical study was conducted to investigate how the tool-wear affects the burr height by varying the punch nose radius. The simulation results obtained under the effect of the same process variables are in good agreement with the experimental results. Six punches with various nose edges, 0.00mm, 0.05mm, 0.10mm, 0.20mm, 0.30mm and 0.40mm were used for blanking simulations. The results indicate that the burr height is directly proportional to the punch nose radius.