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一、前言精冲技术发源于德国和瑞士。1922年4月9日德国人富礼兹·席斯(Fritz Schieβ)首先取得了精冲的专利权。专利题为:“金属件的液压冲裁、锻造装置”。苏黎世工科大学的一教授认为精冲技术的发展依赖于瑞士钟表业优秀技术多年积累的经验。这项技术在开始发展的三十几年中对外界一直保密。随着50年代末期精冲压力机的出售,精冲技术才得以公开于世。但当时的精冲件仅局限于钟表零件,技术关键就在于带齿圈的压板和几乎为零的冲裁间隙。
I. Introduction Fine blanking technology originated in Germany and Switzerland. April 9, 1922 German Fritz Schiess first obtained the fine punching patent. Patent entitled: “metal pieces of hydraulic blanking, forging device.” A professor at Zurich University of Technology believes that the development of precision blanking technology relies on years of experience accumulated by the Swiss watch industry. The technology has been kept confidential to the outside world for more than three decades. With the sale of fine blanking presses in the late 1950s, fine blanking technology was made public. But at the time of fine blanking pieces are limited to watch parts, the key is that the technology with ring gear plate and almost zero blanking gap.