鏜削加工的製程特點

單刃鏜刀鏜孔具有以下特點:

(1) 鏜孔適應性強. 在鑽孔的基礎上可以進行鏜孔, 鑄鍛孔. 可實現的尺寸公差水平和表面粗糙度值範圍廣泛;
Except for the small and deep holes, almost all holes of various diameters and structures can be bored, as shown in Table 7-1.

(2) Boring can effectively correct the position error of the original hole. 然而, because the diameter of the boring bar is limited by the hole diameter, its rigidity is generally poor, and it is easy to bend and vibrate. 所以, the control of boring quality (especially for elongated holes) is not as convenient as reaming.

(3) The productivity of boring is low. Because boring requires multiple passes with a smaller depth of cut and feed to reduce the bending deformation of the tool bar. 另外, boring on boring machines and milling machines requires adjusting the radial position of the boring tool on the tool bar, so the operation is complicated and time-consuming.

(4) Boring is widely used in the hole processing of various parts in single-piece and small-batch production. 量產中, boring the bearing holes of the bracket and box body requires a boring die.

Features of boring