What's the effect of rake angle on the chip formation for a lathe contrivance?
for a turning process, what's the effect of the rake angle on the chip?
Answers:
for a higher rake angle, the chip will tear sour more so than be cut off and vice versa for low rake angle
With a positive rake either sideways or front to stern, the cutting pressure will be relieved. The chip will also be assisted in clearing the adjectives edge.
Any positive rake tends to lessen the adjectives edge pressure, but if excessive, may cause the adjectives edge to be pulled forward into the cut. Not good.
Positive rake are best used on soft materials (but not copper or brass!).
Negative rakes might be used for machining these metals. No raking is probably best for copper.
Or a "chipbreaker" slither.
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Answers:
for a higher rake angle, the chip will tear sour more so than be cut off and vice versa for low rake angle
With a positive rake either sideways or front to stern, the cutting pressure will be relieved. The chip will also be assisted in clearing the adjectives edge.
Any positive rake tends to lessen the adjectives edge pressure, but if excessive, may cause the adjectives edge to be pulled forward into the cut. Not good.
Positive rake are best used on soft materials (but not copper or brass!).
Negative rakes might be used for machining these metals. No raking is probably best for copper.
Or a "chipbreaker" slither.
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