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FLAME STRAIGHTENING

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Topic: FLAME STRAIGHTENING

SCREWED
Member

Posts: 1
From:STRONGSVILLE, OHIO
Registered: Mar 2005

posted March 09, 2005 04:27 PM

We are presently straightening screws after weld on a hydraulic press. This is causing the welds to crack.I am going to start starightening using heat, does anyone have a good practice for this or any good advice.Or is there somewhere I can go to learn more on this procedure.? Thanks very much in advance.

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Tom C
Moderator

Posts: 479
From:Brodheadsville, PA USA
Registered: Jun 2001

posted March 10, 2005 01:14 PM

I have never made screws, but I have bought a lot of screws with hardfacing and crack problems.

From what I've heard you need to do some or all of the following things;

Buy the bar stock already heat treated and stress relieved.

Straighten the screw after cutting and before hardfacing.

Apply hardfacing to a screw which is hot. How hot I don't know. Allow the screw to cool very slowly in vermiculite.

Then grind the hardface.

Only minor straigtening should be required
after this procedure. Usually I've seen guys do it with a rubber mallet.

------------------
Best Regards,

Tom Cunningham

Extrusion Technical Services

www.ExtrusionTechnicalServices.com

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