|
|
Post by bazza44 on Apr 11, 2024 16:28:07 GMT 10
Would this be correct or not. ?
Barry
|
|
|
|
Post by stoney on Apr 11, 2024 17:52:02 GMT 10
I was wondering about the calibration of my torque wrench. This was timely. Thanks Barry
|
|
|
|
Post by bazza44 on Apr 12, 2024 8:07:33 GMT 10
Looks like I can not adjust my old Warren and Brown tension wrench, but new parts are available.
Barry
|
|
|
|
Post by stoney on Apr 12, 2024 9:58:05 GMT 10
While this calibration will work on the set weight. There is no span adjustment. So it may me correct for the test weight. When used on a different torque setting it may not be accurate.
|
|
|
|
Post by spaceland on Apr 12, 2024 10:25:52 GMT 10
Warren and Brown only did the test on the repaired wrench at one point. They must consider the whole thing is linear enough over its range not to need testing at a few points.
|
|
|
|
Post by bazza44 on Apr 12, 2024 10:57:53 GMT 10
Stoney couldn't you try a different weight and calculation and see if it corresponded with the new setting without having to make any alterations ?
Barry
|
|
|
|
Post by nsgnomad on Apr 12, 2024 11:16:21 GMT 10
Warren and Brown only did the test on the repaired wrench at one point. They must consider the whole thing is linear enough over its range not to need testing at a few points. The principle is that the deflection of a beam (the handle) is linear over a distance until distortion of the beam occurs. (Hooke's law I believe). The black flat part of the device is not subject to any force, so remains a constant upon which the deflection of the handle is measured. Iinteresting that the wrench shown in the video is identical to the one my father bought in the mid 1960's, except for the numbers on the scale. |
|
|
|
Post by stoney on Apr 12, 2024 11:37:36 GMT 10
Stoney couldn't you try a different weight and calculation and see if it corresponded with the new setting without having to make any alterations ? Barry You could do that. If it’s within range well and good. If it’s not you need a span adjustment. |
|
