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Para reducir la fricción entre la parte guía y la pared del orificio cuando se perfora, la broca de perforación de twist reduce gradualmente el diámetro a la dirección del vástago del cono invertido. El ángulo helicoidal de la broca de perforación de giro de la aeronave afecta principalmente el tamaño del ángulo de vanguardia, la resistencia al colgajo de borde y el rendimiento de la eliminación de chips. Los bollos de broca de perforación giratoria suelen ser 25 ° ~ 32 °.
2022/06/10
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Privacy statement: Your privacy is very important to Us. Our company promises not to disclose your personal information to any external company with out your explicit permission.