文献翻译-超精密加工与超高速加工技术

附录

附录1：

英文原文

Ultraprecisio processing,andultra-high-speed processing

technologies

First, Technical overview

Sophisticated, ultra-precision processing is a relative concept but as a general increase in the level of craftsmanship, different divisions have different age limits, but no strict uniform standards. From the current level of mechanical processing technology and ultra precision processing usually processing precision<0.3μm ，Surface roughness Ra value<0.03μm.

Hypervelocity processing technology refers to the cutlery used paint materials through greatly increased cutting speed and chin to improve the material removal rate of speed, accuracy and Processing processing quality modern processing technology.

Hypervelocity scope for cutting speed processing different working materials, different ways and different machines. Currently, the general view, ultra high speed machining of the cutting speed range of materials : aluminum alloy over 1600m /min, cast iron for 1500m /min, ultra heat -300m /min nickel alloys, titanium alloys to 150 ～1000m /min, fibre reinforced plastics for 2000 ～9000m /min. The cutting speed range of alternative processes for Chexue 700 ～7000m /min, Xianxiao 300 ～6000m /min, drilling 200 ～1100m /min, grinding 250m /s above, and so on.

Ultra high speed processing technologies include : ultra high speed machining and grinding research mechanisms, hypervelocity main modules manufacturing technology, ultra high speed into the module manufacturing technology, ultra high-speed processing with cutlery and abrasive manufacturing technology, ultra high speed processing online automatic detection and control technologies.

Ultra precision processing refers to the current processing components size precision than 0.1μm, the surface roughness Ra <0.025 μm, and the machine tools used in the resolution positioning accuracy and repetitive than 0.01μm processing technology, also known as the Asian micrometres processing technology, and is to nano-class processing technology

development.

Ultra precision processing technology include : ultra precision processing experiment, ultra precision processing equipment manufacturing technology research, tools and Renmo super precision processing technology research, technology and ultra-precision measurement error compensation technology research, ultra precision processing work study environmental conditions.

Second, the current situation and development trend

1）Ultra high speed processing

Developed ultra-high-speed processing of industrial research earlier, the high level. In this technology, in a leading position in the country mainly Germany , Japan , the United States , Italy .

In hypervelocity processing technology, the frame material to achieve ultra high speed processing tool is the prerequisite and preconditions, ultra high speed grinding machine technology is a modern method of hypervelocity processing techniques, and high-speed digital machine tools and processing center is the key to achieving ultra-high-speed processing equipment. Currently, cutlery materials from carbon steel and alloy tool steel, the high-speed steel, hard alloy steel, ceramic materials, the development of artificial diamonds and Jujing diamond (PCD), and Ju Jing cubic feet Danhuapeng Danhuapeng (CBN). Cutting speed is as innovative materials and cutlery from the former 12m /min to 1200m /min above. Abrasive Wheels materials used in the past primarily corundum is, silicon carbide is, the United States G.

E companies in the 1950s, synthetic diamonds success, the 1960s was the first success CBN. 1990s ceramic or resin combination agents CBN grinding wheel, diamond grinding wheel speed up 125m /s lines, some up to 150m /s and single-level electroplating CBN grinding wheel to 250m /s. It was felt that with the new cutlery (Saint), the continuous development of materials, cutting speed to be doubled every decade, the emergence of subsonic and supersonic processing will not be too far off.

In hypervelocity cutting technology, developed in 1976 by a U.S. company Vought Taiwan hypervelocity milling machine, the maximum rotational speed of 20000rpm reached. Special attention is the Federal University of production engineering and machine tools industry Darmstadt Institute (PTW) from 1978 began a systematic study of hypervelocity alternative mechanisms for the various metals and non-metallic materials for high-speed machining tests Federal dozens of enterprises and organizations provided more than 2,000 million DM in support of the study, since the late 1980s, since the commercialization of emerging ultra-high-speed machining machine tools, super-high-speed machine tools from a single super high-speed milling machine into hypervelocity vehicles milling machine, drilling of high-speed milling