Corresponde ao ângulo formado pelas arestas cortantes da broca. Também é determinado pela dureza do material a ser furado.
Meaning
The point angle in machining refers to the angle formed by the cutting edge of a tool or drill with a reference plane. It affects factors like cutting forces, chip formation, tool life, and surface finish. The choice of point angle depends on the material being machined and the desired outcome. A smaller point angle produces a sharper cutting action, suitable for softer materials, while a larger point angle is used for harder materials to reduce wandering.