Home / Blogs / Company News / Punch Selection Skills

Punch Selection Skills

Views: 0     Author: Site Editor     Publish Time: 2019-04-06      Origin: Site

facebook sharing button
twitter sharing button
line sharing button
linkedin sharing button
pinterest sharing button
whatsapp sharing button
kakao sharing button
snapchat sharing button
sharethis sharing button
Punch Selection Skills

Die production needs to rely on the punch press to provide power. Dies of different size, structure type need to choose different punch to match. Reasonable selection of punch press can reduce cost and save resources.  The main standard of punch press is measured by the size of tonnage, usually through the sum of die blanking force, forming force, pressing force, stripping force and so on.

Blanking force is the mainstream.  The blanking force is not fixed. The change of the blanking force in a stamping process is as follows:

when the punch begins to contact the stamping product, the blanking force is increasing. When the punch is about 1/3 of the thickness of the product, the blanking force reaches the maximum value. Then, as the material breaks, the force gradually decreases. Therefore, it enough to calculate the maximum blanking force.

Calculation of blanking force Calculation formula of ordinary blanking force: P=L*t*KS Kg  Note: P is the force required for blanking, and the unit is Kg L is the total outline perimeter of blanking products, in mm T is the material thickness, in mm KS is the shear strength of the material, in Kg/mm² In general, when the blanking product is made of soft steel, the specific shear strength of the material is as follows: KS = 35kg/mm²

Tel: +86-21-5410-0878
Fax: +86-21-5410-8802
Add: No 19, Huanglong 3rd Road, Huanglong Industrial Zone, Wuyi, Zhejiang, China
Leave a Message
Online Message

Quick Links



Copyright © 2024Zhejiang Jinaolan Machine Tool Co., Ltd. All Rights Reserved.
Privacy Policy SiteMap | Support By Leadong