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Old 11-26-2020, 02:08 AM
John Buchtenkirch John Buchtenkirch is offline
MetalShaper of the Month October 2012
Join Date: Jul 2009
Location: Glen Cove, Long Island
Posts: 1,649
Default Extra slippery lubricant ???

Little Franky punched a bunch of 3/16Ē holes in 24 stair tread adapters he made for me today. He was having some troubles extracting the punch from the 1/8Ē metal, using the weight & play in the punch handle to sort of bump / hammer the punch out of the metal. We have been putting cutting oil on our punches but itís a choice only because itís handy being itís always on the nearby drill press. Iím just wondering if thereís some tricked out super slippery lubricant we could be using to ease up the extractions of the punch ? Thank you. ~ John Buchtenkirch
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Old 11-26-2020, 06:50 AM
Ron Naida Ron Naida is offline
MetalShaper of the Month Nov 2015
Join Date: Feb 2010
Location: MD
Posts: 278

I use way lube for necking up/down tubing.
Seems to work well.

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Old 11-26-2020, 10:34 AM
bobadame bobadame is offline
MetalShaper of the Month Feb 2015
Join Date: May 2009
Location: Fort Collins, Colorado
Posts: 1,184

Try some STP or something similar but here's only so much you can do with lube especially after metal begins to build up on the sides of the punch. There needs to be more clearance between the punch and die.

Don't believe everything you think.
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Old 11-26-2020, 11:33 AM
Marc Bourget Marc Bourget is offline
Join Date: May 2013
Location: North Ca
Posts: 553

No personal experience, but a Tool and Die guy I knew liked to grind a slight concave above the cutting edges of the punch for just that reason. Delayed the onset of sticking.
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Old 11-26-2020, 12:17 PM
geelhoed geelhoed is offline
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Join Date: Jun 2009
Location: hastings mich
Posts: 290

I've broken some small whitney -jenson style punches on extraction.
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Old 11-26-2020, 02:26 PM
norson norson is offline
Join Date: Nov 2010
Location: Portland, Or.
Posts: 395

A lot of punch machines have a "crows foot" that holds the material down while the punch is pulled though.
Norm Henderson
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Old 12-06-2020, 03:04 PM
Ken Hosford Ken Hosford is offline
Join Date: Nov 2009
Location: South East Michigan
Posts: 416

A few thoughts Extreme pressure lube McMaster has
crisco or bacon grease I have known of dowel pins light press with crisco that did not want to come back out
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