Selection of screw tap-Shanghai Lianran International Trade Co., Ltd

Selection of screw tap

Release time:

2022-06-09

The method of cutting internal threads (nuts), although generally using lathes or screws to tap the teeth, is almost always using screws to tap the teeth when the diameter is small and there is a lot of production.

Preface

Most cases of tooth tapping operations are near the final processing program, so once the thread tap breaks, the gong hole expands or shrinks, and the teeth crack, it will cause many defective products to suffer many damages.

In recent years, with the advancement of automatic and high-speed mechanical amusement, the tooth tapping machine has also used excellent machinery with guide and feed mechanisms. On the other hand, the materials being cut have an increasing tendency to be difficult to cut, and the cutting conditions are usually single attack, which has become more stringent.

Tapping is the process of first tapping the thread through the lower hole diameter drilled by the drill bit, which involves cutting in a very narrow space and discharging the chips. The flow status of chips varies depending on the material being cut, so it is ideal to use screw taps that have been successfully developed according to their purpose.

This is to explain the characteristics of screw taps, their correct use, and the countermeasures when they occur in the following order.

1. Selection of screw tap

Names of each part of the 1-1 screw tap (Figure 1)

螺丝攻各部的名称