Dry cut is a treatment technology that does not need or does not use cutting liquid without using the processing process, and it is also a manufacturing process that controls, clean and respectful of the environment environmental controls. As a new type of green manufacturing technology, it has not only small environmental pollution, but also saves the device linked to the cutting fluid. (This article is selected in chapter 9, section 9 (ii) dry cut)
(1) The characteristics of the dry cut
The dry cut must have strict performance requirements for knives:
(1) It has excellent resistance to heat and abrasion. Dry cutting temperature is generally higher than wet cut, and heating and high tool material can effectively support the high temperature of the cutting process and maintain good wear resistance.
(2) Low friction coefficient. Reduce the friction coefficient between cutting tools and dandruff, the tool and the surface of the room.
(3) A higher high temperature tenacity. The dry cutting force is larger than the wet cut and the cutting conditions are poor, so the tool must have a high high temperature tenacity.
(4) higher thermal chemical stability. At high temperature, the tool still maintains high chemical stability, reducing the catalysis of the high temperature response to chemical reactions, thus extending the lifespan of the tool.
(5) has a reasonable angle of geometry of the structure of the tool. The body angle of the reasonable knife structure can not only reduce the cutting force, inhibit the production of dandruff tumors, reduce the cutting temperature, but also have dandruff and control the film flow function. The shape of the knife provides smooth crumbs and easy to heat.
Compared to the traditional wet treatment of cutting fluid, dry cut is a clean manufacturing process controlled by the source of environmental pollution.
(1) The formation of fleas is clean, cleaned, without pollution and is easy to recycle and manage.
(2) Eliminate devices and costs related to transmission, recycling, filtering linked to cutting fluid, simplify the production system and save production costs.
(3) In the reduction of metals, the cost of general knives represents 4% to 7% of the entire treatment cost, and the cutting solution and the cost of treatment represent approximately 16%.
(4) Do not pollute the environment and do not occur accidents of safety and quality linked to the cutting fluid.
(2) Dry cutting application
Mitsubishi, Greson, United States and other companies in the United States have carried out effective research in this regard.
The “GE06A” dry cutting machine launched by Mitsubishi, in Japan, can improve the thermal capacity of the bed by high rigidity and thermalization of the weak hair of the spindle and the blade shaft, which can ensure stability and stability high precision of treatment during highs – speed treatment. The dry cup has special requirements for the roller knife. This system has the same effect in the treatment of final transmission gears, large load, car races and planetary gears in the process of processing vehicles, and the cost of production is at least 40%.
Gryson uses a hard alloy knife to use a dry cutting method to treat cone equipment on the Phoenix machine. This series of dental rolling machines can reach 3000r / min. The launch of the last “600HC” of the Phoenix II series is treated in the production of large gears in large gears in the production of large gears in the production of speeds of 600 mm and almost current speeds.
The American Blue-Fette (LMT-Fette) uses a hard alloy knife to cut the equipment to considerably reduce the treatment time and the cost of the equipment. The dry kc250h dry -type tooth -type machine developed by Ken Tengtan Iron Worker from Japan uses a hard alloy rolling knife, cold air cooling and trace lubrication for high speed teeth. The room is extremely small. Compared to the humid high speed roller in traditional Ka220 steel, it has increased by 3.2 times and the precision of the gear is considerably improved.
In 2008, the group of Chongqing CNC High-Speed Dry Machine Chongqing CNC carried out a digital control in seven axes and an automatic dry cut linked to four axes. Treatment of environmental protection. Compared to ordinary teeth machines, its treatment efficiency is 2 to 3 times that of the wet cut, and the cost of singleocare is only 60% of the traditional machine-tool.
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