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Re:TR rods are made of?Stamping vs. Forging expanation

To: Triumphs@autox.team.net
Subject: Re:TR rods are made of?Stamping vs. Forging expanation
From: Gbouff1@aol.com
Date: Fri, 4 Jul 2003 08:17:32 EDT
I've worked in the forging industry for the past 30 years and have found that 
a lot of terms are loosely used throughout the industry.  I the case of 
forging vs. stamping, Randall is quite correct in assuming that the forged 
parts 
were probably drop-forged using a Drop-Hammer, thus the term.  The "stamped" 
connecting rods were probably made on a Forging Press, with the connecting rod 
"stamped" out of bar.  While this is somewhat of a misnomer, that particular 
term has been somewhat misused in the industry.  

For example our company currently uses a 1600 ton press to forge connecting 
rods (from 4140 material), for a company that manufactures after-market Harley 
parts and Harley type engines.  We also forged crankshafts for small 2/cycle 
engines using a 3000LB Drop Hammer.  In either case the end result is about the 
same, Forging presses are faster but are sometimes limited to shape 
complexity or material flow, Hammers are usually slower but can usually produce 
more 
complicated shapes or parts with difficult material flow.  Unfortunately it is 
a 
labor and capital intensive process and we are getting creamed by Indian and 
Chinese competition which offer finished products at prices that are close to 
or less than our raw material cost.  

Like everything else, these are generalities and only address hammer and 
mechanical press forging, there are all sorts of different forging methods that 
I 
won't get into here.

Well, I'll be quiet now, I'm sure that's more than anyone wants to know about 
forging.

BTW, I am in the process of job hunting, any one need a good, VP of 
manufacturing, operations manager, or general manager?

Gary Bouffard

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