1 / 11

Shearing

Shearing. Shearing. Punch and die Ratio of rough area:burnished area increases with higher ductility Punch travel depends on the ductility or brittleness. A brittle metal requires little travel. Punch Force. Punch Force = shear strength * cross-sectional area. Friction can affect this.

xiu
Download Presentation

Shearing

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Shearing

  2. Shearing • Punch and die • Ratio of rough area:burnished area increases with higher ductility • Punch travel depends on the ductility or brittleness. • A brittle metal requires little travel.

  3. Punch Force • Punch Force = shear strength * cross-sectional area. • Friction can affect this. • P = 0.7 (UTS) (t) (L)

  4. http://www.transvalor.com/index.php?rub=52&mo=3&so=63&sso=52

  5. Shearing Operation • Punching – slug is discarded • Blanking – slug is retained • Fine blanking • Slitting

  6. Shearing Dies • Clearance usually between 2% and 8% of the shear thickness. • Compound dies • Several operations on the same strip may be performed in one stroke. • Progressive dies • Multiple operation are carried out as the coil is moved after each stroke.

More Related