钻头扭转强度的估算

• 作 者: 刘利
• 出 处: 工具技术
• 发表日期: 1988年01期
• 关键词: 切削扭矩 扭转强度 竺里

钻头扭断时的扭矩按下式估算: T_b=2500(ωD/18)~2式中:T_b—钻头被扭断时的扭矩(吋、磅); ω—钻心直径与钻头直径之比(%); D—钻头直径(时)。钻头的实际切削扭矩按下式估算: T=S·f~(?)·D~d式中:T—钻头的实际切削扭矩(吋、磅);

T_b = 2500 (ωD / 18) ~ 2 Where: T_b-torque at which the drill bit is broken (inches, pounds); ω- the ratio of the drill-hole diameter to the drill diameter (% ); D-drill diameter (time). The actual cutting torque of the drill bit is estimated as follows: T = S · f ~ (?) · D ~ d Where: T-actual cutting torque (inch, pound) of the drill bit;