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100 Years Of High Speed Steel Knives
- Jul 29, 2018 -

100 years ago, American mechanical engineer F. W Taylor and metallurgical engineer M. White established the best component W28Cr4V for cutting high-speed steel after extensive and systematic cutting tests (C 0.75%, W 18%, Cr 4.0%, V 1.0%), the carbon steel speed during cutting was 30m/min, which was more than ten times higher than before. This achievement brought about an epoch-making revolution in machining, which made the tool materials show an extraordinary development speed after entering the 19th century, creating unprecedented glory. In the past 100 years, despite the emergence of various new tool materials, high-speed steel has not been eliminated by history, has been used and developed to this day, and even occupied a dominant position for a long time.

 

Today, we will re-examine the development of high-speed steel, which may bring some useful inspiration for the further development of tool materials. Here, I also put together four experts from Zhao Bingyan, Wu Yuanchang, Zhao Buqing and Wu Lizhi at the Heye 2006 High Speed Steel Application Technology Exchange Conference to clarify the readers. The development of tool materials has a direct impact on cutting technology and machining, which indirectly affects the development of human economy and society. The most landmark event in the history of tool materials is the successful development of high-speed steel.

 

More people are willing to use the public demonstration of high-speed steel tools at the 1900 Paris Expo as the "high-speed steel first year", not only because of the simple and easy to remember this time, but also because of the sensational effect caused by high-speed steel tools in the past; Recorded in 1898, Taylor and White developed high-speed steel, because it was a breakthrough from scratch; and some literature records emphasized that in 1906, Taylor and White established the W18Cr4V that really affected the centuries. Which year is not so important to us today, what is important is the development of high-speed steel and other tool materials. In 1910, an Englishman wrote: "At the 1900 Paris Expo, some engineers saw a high-speed lathe with a tool on it, using it with a pointed end. The blazing heat eliminated a dark blue shard, and the engineers realized that they had witnessed a revolutionary beginning in tool steel and machine tools."

 

This Paris exhibit is a product of the Bethlehem Steel Company in Pittsburgh. It is the tool material tested by Taylor and White. It is made of a heat-treated chrome-tungsten steel that is manufactured at a faster turning speed than carbon steel. More than ten times higher. Although the tool was dark red due to friction with the workpiece, it was sharp and sharp, and the audience was stunned by the iron. Since then, this steel has gained the reputation of "high-speed steel".

 

People began to realize the advantages of this steel and use this material in machine knife.