佛山市钰海螺丝机械有限公司
搓丝机原理
发布日期:2020-10-20 11:54:51

   辗牙原理是利用金属的可塑性,将已成形之半成品加以辗制,以达到所要求之螺纹规格。其特点是直接压制成形没有废料,成本低、效率高、光洁度高、精度均一,相对切削加工而言,其产出品强度高。 辗牙工作的基本条件:平行的两块牙板,以静牙板的长度Ls为标准,其长度为被加工物径的20倍以上,但不可超过35倍,辗制过程中被加工物在牙板内转动圈数木螺丝不锝低于6圈,机螺丝不得低于4圈,若转动圈数不足,被加工物受其强迫压造会造成椭圆形或异状变形,影响材料组织及机械性质。

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