Friday, December 30, 2011

High Speed Cutting Technologies

High speed cutting technologies-high-speed cutting is a  System technology


What is high-speed cutting?

High-speed cutting is the cutting speed is generally 5-10 times more than conventional cutting speed machining. Thus, according to the processing of different materials and different processing methods, high-speed cutting of the cutting speed ranges. High-speed cutting, including high-speed milling, turning speed, high-speed drilling and high-speed milling, etc., but the vast majority of applications are high-speed milling. At present, processing aluminum has reached 2000-7500m/min; cast iron 900-5000m/min; steel as 600-3000m/min; heat-resistant nickel-based alloys up to 500m/min; titanium up 150-1000m/min; fiber-reinforced plastics 2000-9000m/min.

Germany since the 1930s, Dr. Carl Salomon first introduced the concept of high-speed cutting since the 1950s through the mechanism and feasibility studies, technology research 70 years, 80 years of comprehensive and systematic study of high-speed cutting technology, the early 1990s, high-speed cutting technology began to enter the practical, to the late 1990s, the commercialization of high-speed cutting machine tools in large numbers, the early 21st century, high-speed cutting technology has been widely used in industrialized countries, is becoming a mainstream technology machining.



High-speed cutting in the aerospace industry, tooling industry, electronic industry, automobile industry and other areas to be more widely used. Solutions in aerospace parts large margin if the owners of the material removal, thin-walled parts processing, precision, difficult materials and processing efficiency, and overall structural parts, especially high-speed cutting, both to ensure part quality, and save a lot of assembly work; most of the mold and die industry are applicable to high-speed milling technology, high-speed hard machining can process up to 50-60HRC hardness of the hardened material, thereby replacing some of the EDM, and reduce the fitter grinding process, shortening the mold cycle; receive high-quality high-speed milling of graphite EDM electrodes. High efficiency to high-speed cutting holes in the electronics and automotive mass production of printed circuit boards are widely used. Currently, for high-speed cutting of the workpiece material are aluminum, titanium, copper alloy, stainless steel, hardened steel, graphite and quartz glass.
 
High-speed cutting machine tools:

 To get a good high-speed machining applications, it is necessary to high-performance high-speed cutting tools, workpiece materials and tools and to adapt to the specific processing of objects for the best combination of processing technology. High-speed cutting machine is a basic condition for high-speed cutting applications.

High-speed milling spindle speed 18,000 rpm or more generally,30,000-60, 000rpm has practical applications in industry, more than a dozen to a few kilowatts of power in the high-speed mode for maximum power, but to minimize torque, while the allowable cutter diameter will also be reduced. High dynamic drive straight into the work to feed the speed is generally 20-40m/min, the use of linear motor drive speed 60-120m/min, acceleration 1-2g. Rotary table speed of up to 360rmp, rotary acceleration up to 47 ° / s ², basically meet the high-speed five-axis machining.

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