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Engineering Review : Međunarodni časopis namijenjen publiciranju originalnih istraživanja s aspekta analize konstrukcija, materijala i novih tehnologija u području strojarstva, brodogradnje, temeljnih tehničkih znanosti, elektrotehnike, računarstva i građevinarstva, Vol. 29 No. 1, 2009.

Pregledni rad

PUNCH DESIGN INFLUENCE ON STAMPABILITY

Ravilson Antonio Chemin Filho ; Universidade Federal do Paraná
Paulo Victor Prestes Marcondes ; Universidade Federal do Paraná

Puni tekst: engleski pdf 558 Kb

str. 81-88

preuzimanja: 913

citiraj

Sažetak

Alterations are often necessary during the tryout of stamping tools. These changes may range from adjustments on die and punch design to the selection of a new material with better formability characteristics. The identification of regions in the workpiece where stretching, deep drawing and/or plane strain will occur during the forming process can allow the process to work smoothly through the tools’ geometry optimization. Nowadays, increasing attention has focused on a material evaluation based on tool geometries. In this work, the effect on the Forming Limit Curve of four punch models with varying geometries was analyzed in addition to the traditional Nakazima test tool. It was found that a marked reduction in the tool’s radiuses (R1 and R2 radii) reduces the material forming potential by decreasing the major true strain.

Ključne riječi

stampability; punch design; sheet metal forming

Hrčak ID:

39446

URI

https://hrcak.srce.hr/39446

Datum izdavanja:

22.7.2009.

Podaci na drugim jezicima: hrvatski

Posjeta: 2.169 *