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Elaborate Left Metric Thread M36 UNC-IZQ in Parallel Lathe 👌 # tech # technology🚀🔌
How to make a square thread on a parallel lathe
It consists of building a rectangular profile fillet with a procedure similar to threads
triangular, regarding what is the preparation of the machine, varying fundamentally in the
type of profile and with a depth equal to half the step.
They are used in mechanical construction that transform movements such as,
drives, loading machine carriage bolts, etc.
The accuracy of the thread depends fundamentally on the shape of the tool since during the exercise there is only the diameter of the previously machined core at the entrance of the thread.
The square profile thread can be external and internal, right or left. And they run with
a razor sharp to the pitch of the thread.
The rake angle of the blade is generally equal to zero, the main angle of
alpha incidence = 6 to 8 °, the lateral planes of the blade must be inclined downwards to avoid friction with the lateral flanks of the thread grooves.
The greater the inclination of the thread, the greater the inclination must have the lateral planes of the blades. The inclination angle alpha 1 is taken from 2 to 3 °, greater than the elevation angle of the spiral line. The angle of incidence alpha 2 is approximately equal to 3 °
regardless of elevation angle.
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8 сен 2024
