Page 43 - MetalForming November 2011

Punch
Shaving
Fig. 2—A hollow-ground shave punch
Stock
Die
Tooling by Design
PMA 2011 Leadership Conference & Annual Meetingof Members
November 12-13, 2011
Stay for FABTECH (Opens November 14th) Visit the METALFORM Area!
Highlights include
• Dynamic and informative assembly sessions Keynote Speakers:
Jeb Bush, Florida’s 43rd Governor
Dana Perino, Fox News and former White House Press Secretary
Featured Speakers:
William A. Strauss, Federal Reserve Bank of Chicago
Jeoff Burris, Advanced Purchasing Dynamics
• Interactive industry break-out sessions
• Gala Reception & Banquet honoring PMA’s 2011 Officers
• PMA’s Annual Meeting of Members
• PMA’s Awards of Excellence Luncheon
Go to www.pma.org/annual for more information.
6363 Oak Tree Blvd. Independence, OH 44131 216-901-8800 | www.pma.org
Production Engineering
Purchasing Customer Service
ERP
Delivery Accounting
Human Resources
the rake angle found on a machine cutting tool. As an exam- ple, see Fig. 2 of a hollow-ground shave punch (courtesy David Smith and Associates). This modification can improve surface-finish quality and extend punch life.
After the hole has been shaved, coin a small (0.020-in. dia.) radius on the bottom side to compress any burrs that may serve as stress risers.
Now that the hole is properly prepared, it’s ready to be extruded. Next month we’ll examine some proven extru- sion-punch designs for forming extruded holes in stampings.
MF
The Manufacturing ERP ExperienceTM
EP
E P
ERP
February 28-29, 2012 | Los Angeles, CA October 3-4, 2012 | Cleveland, OH
MetalForming magazine offers two opportunities in 2012 for you to tour the industry’s leading enterprise- resource-planning (ERP) software systems for small- to midsized manufacturing companies.
These 1.5-day information-packed events, scheduled for February 28-29, 2012 in Los Angeles, CA, and October 3-4, 2012 in Cleveland, OH, will include software demonstrations from leading suppliers; case-study presentations describing successful software-implementation projects; and keynote presentations on state-of-the-art ERP technology innovations. Also included will be social/networking events.
New levels of sponsorship packages are available.
This is your chance to network with ERP experts. For more information, contact Andrew Flando
at 216/901-8800, aflando@pma.org.
www.metalformingmagazine.com
6363 Oak Tree Blvd. Independence, OH 44131 216/901-8800 | fax 216/901-9669 e-mail: metalforming@pma.org
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MetalForming/November 2011 41