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钻杆是XY型钻机的一个关键零部件。钻杆工作时需要承受扭转疲劳应力和瞬时冲击载荷，因此要求具有较高的疲劳强度和较好的冲击韧性。钻杆属细长管，一般采用４５×４２００mm的４５号优质钢管加工而成，钻杆结构如图１所示。图１钻杆的结构按原来工艺生产的钻杆在使用过程中容
Drill rods are a key part of XY-type rigs. Drill pipe work need to withstand torsional fatigue stress and instantaneous impact load, thus requiring a higher fatigue strength and better impact toughness. Drill pipe is a slender pipe, generally 45 # 4200mm 45 quality steel processing, drill pipe structure shown in Figure 1. Figure 1 Structure of the drill pipe Production of drill pipe according to the original process in the use of capacity