What kind of material is used for spring collet, which is wear-resistant and durable

October 28, 2022

Spring Collet is a kind of cylindrical clamp which is installed on the milling machine and used to imprison the drill or milling cutter. It is a kind of fixing device used to fix and reinforce the parts to be modified.

The structure principle is as follows: the collet is installed in the lock nut, and then the lock nut with spring collet is gently screwed on the tool handle, extension rod or spindle. Be sure to clean the spring collet, the threaded part of the locking nut, the locating surface and the cone surface. During the installation of the collet and the locknut, the collet and the locknut must be tilted at a certain angle, and then gently put them into the locking groove of the locknut.

Therefore, the hardness, clamping force and toughness of the spring chuck are very important. Spring steel must be used to make it elastic. They are 65Mn and 60SI2MN. Heat treatment of 48 to 50 degrees can achieve the best effect. If it is too hard, it will be brittle, and if it is too soft, it will be easy to deform.

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