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Para reduzir o atrito entre a parte do guia e a parede do orifício ao perfurar, a broca de reviravolta do trado reduz gradualmente o diâmetro para a direção da haste do cone invertido. O ângulo helicoidal da broca de torção de aeronaves afeta principalmente o tamanho do ângulo de ponta para a frente, a resistência ao retalho de borda e o desempenho da remoção de chips. Os bits de broca de torção são geralmente 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.