薄壁小瀑孔油缸由于工件—刀具系统刚性不足,容易产生切削振动,装夹和切削热引起的变形,刀具容易磨损,加上排屑、冷却润滑条件差,很难保证加工质量。去年初,我们承接了自动升降用气垫顶出小油缸孔加工攻关任务(图1)。年产量5000根,用45钢冷拔管作坯件,内孔加工余量为0.20 Thin walled cascade hole cylinder due to the workpiece - the lack of rigidity of the tool system, prone to cutting vibration, clamping and cutting heat caused by deformation, easy to wear tool, with chip removal, cooling and lubrication conditions are poor, it is difficult to ensure processing quality. At the beginning of last year, we undertook the task of tackling small cylinder bores by air-cushioning (Figure 1). The annual output of 5000, with 45 steel cold drawn tube for the blank, the hole processing allowance of 0.20