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Old 01-06-2020, 12:48 PM   #20
jwhotrod
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Join Date: Oct 2018
Location: DeKalb, IL
Posts: 154
Re: TIG weld stainless exhaust purge

Quote:
Originally Posted by FAKKY View Post
Compression bender ? Just mean the bend of the tube ?
if you go to the local exhaust shop and they bend pipe for you, they use a compression bender. That bender wrinkles or reduces the pipe diameter in the bend, because the internal diameter is not supported with a mandrel. the mandrel bends you buy are bent with a internal mandrel or "pig" that follows the bender thru the bend and supports the diameter for smoother bends.
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