How to unscrew a piece of the studs with an extractor

Removing the hairpin debris extractors

From the theory we turn to practice. I have no specially broken and stuck thread, but I will do a complete imitation in order to visually show the whole process. I have prepared a thick-walled profile with holes that are threaded. I prepared bolts for these holes.
How to unscrew a piece of the studs with an extractor
I take these bolts, hammer off the thread and wrap it with a wrench with a force in profile. Everything is very tight and you cannot tell me that this is not a gram of real conditions.
How to unscrew a piece of the studs with an extractor
I cut the heads flush with a grinder.
How to unscrew a piece of the studs with an extractor
The first thing to do is to drill a hole exactly in the middle. To do this, we take the core and core point,so that the drill does not jump at the beginning of drilling.
How to unscrew a piece of the studs with an extractor
Point of pitting.
How to unscrew a piece of the studs extractor
Now you need to drill a hole, the diameter of which should be approximately equal to half the thickness of the bolt. In this case, the bolt M16, the thread diameter is 16 mm. We take a drill in half and drill a hole with a diameter of about 8 mm.
How to unscrew a piece of the studs with an extractor
It turned out quite exactly in the center.
How to unscrew a piece of the studs with an extractor
Insert the appropriate extractor and start rotating to the left. To turn the extractor, they use the knob, but if it isn’t there, the adjustable wrench is quite suitable.
How to unscrew a fragment of the studs with an extractor
As soon as the extractor produces a hook, the thread fragment itself will turn out.
How to unscrew a piece of the studs with an extractor
I hope it is clear. Now go to a larger bolt.Everything is exactly the same: we drill a hole in the center.
How to unscrew a piece of the studs with an extractor
Insert the extractor and unscrew it to the left.
How to unscrew a piece of a hairpin with an extractor
To free a tool, grip the chip in a vice or in manual clamps. And turn the key to the right side relative to the piece of thread. Turning everything is pretty simple.
How to unscrew a piece of the studs with an extractor
This is a simple and worked out method for years.
How to unscrew a fragment of a stud with an extractor
I want to add that you should not drill a hole of too large a diameter with respect to the thread, since thin walls in the stud will flare the thread itself, which will adversely affect unscrewing. br>Particularly care should be taken with small diameter extractors, as they often break. If the chip does not want to give in, heat the knot and drip it with lubricant.

Date: 15.11.2018, 20:52 / Views: 95164

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