Page 16 - MetalForming February 2019
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In-Die Fastening
Part One—
The Whys and Hows
A well-thought-out in-die-fastening system will take into consideration the operating space, tube and electrical routes, and interfaces with the press and press tooling.
In the first of two articles, we explore why metalformers may benefit from performing fastening operations within the press, and how the technology successfully can be implemented.
Part Two will cover troubleshooting.
BY ANDREW COOKE
Self-clinching fasteners were developed more than 75 years ago as a method for attaching components to thin sheetmetal and to provide robust connections capable of withstanding axial and torque loads. They are particularly useful where com- ponents must be accessed and/or replaced, and where loose fasteners would be inaccessible or where they could pose a risk. Self-clinching fas- teners create permanent, reusable load-bearing threads and, once installed, will not loosen or fall out. These attributes make them popular in many market sectors, including automotive where they often are the
Andrew Cooke is global manager for in-die for PennEngineering, Danboro, PA; 800/342-5736, info@pemnet.com, www.pemnet.com.
14 MetalForming/February 2019
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