Question about Torques and Screws
Question about Torques and Screws
(OP)
Hello,
I found this forum just searching for help on an issue I have with torque/screws, etc. So basically the screws keep getting stripped on an assembly and I have no idea what it could be. I have linked a video with the problem I am having. The torque is calibrated at 50oz.f.in. Does anyone have any idea what it could be?
http://tinypic.com/r/9u2d0m/9





RE: Question about Torques and Screws
- The drive slots.
- The screw's threads?
- The part's thread?
What size is the screw"?
What is the screw material?
How much engagement?
Please describe the torque calibration.
Is there a clutch near the screw, or are you limiting the torque with current6?
RE: Question about Torques and Screws
Mike Halloran
Pembroke Pines, FL, USA
RE: Question about Torques and Screws
I hope we are not coming across as a bunch of a$$holes here, but this is not correct forum for your question. Try forum725: Welding, Bonding & Fastener engineering.
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JHG
RE: Question about Torques and Screws
RE: Question about Torques and Screws
We were using Black & Decker battery operated screwdrivers with a green handle and a silver gearbox, which gave good service and consistent torque.
The problem was traced to a new operator, who would hold the button ON until the driver clicked, then release the button (which locked the spindle), and give the driver another 'zetz' manually. She had pretty strong biceps and wrists, so she was getting an extra quarter of a turn, enough to cause lots of trouble in that (not robust) assembly.
I.e., the first thing to do when there's trouble on the line, is go and watch the line, for yourself.
Do not ever delegate the task of observation.
Mike Halloran
Pembroke Pines, FL, USA
RE: Question about Torques and Screws
Ted