Discussion on the mechanism of sub-dry cutting (3)
When cutting CCr12. Take V=76.4m/min, ap=1mm, f=0.2mm/r, and get Figure 5. 1. Natural cooling 2. Air cooling (-18 ° C) 3. Asian dry Figure 5 Effect of non-cooling method on tool wear and dimensional accuracy when cutting GC12 When cutting with CCr12. Take V=52m/min, ap=1mm, f=0.2mm/r, and get Figure 6. 1. Natural cooling 2.-14 ° C cold air jet cooling 3. Sub-dry mode I (from the front knife jet) 4. Sub-dry mode II (simultaneous jet from the front and back flank) Fig. 6 Relationship between surface roughness Ra and cooling method when cutting Cr12 When cutting 45 steel. Take V=70.4m/min, ap=1mm, f=0.2mm/r, and get Figure 7. 1. air-cooled 2. sub-dry Fig. 7 Comparison of cutting force of cold air cooling when cutting 45 steel Third, experimental analysis and theoretical discussion 1. Cutting force and cutting heat It can be seen from Fig. 2 that in the low temperature region, the effect of casting cooling is better than that of air cooling; in the high temperature region, the effect of the air cooling is better than that of the casting cooling. It can be seen from Fig. 3 that in the natural cooling, air cooling (-15 ° C) and conventional cooling cutting, the natural cooling cutting force is the largest and the sub-dry cutting force is the smallest under the same process parameters. As can be seen from Fig. 4, in natural cooling, casting cooling, air cooling (-23 ° C) and sub-dry cutting, the cutting heat is sequentially reduced. This can be analyzed as follows: Previous Next Here you can find the related products in Vortex Flow Meter, we are professional manufacturer of Vortex Flow Meter,Vortex Shedding Flow Meter,Vortex Type Flow Meter,Vortex Flow Meter Price. We focused on international export product development, production and sales. We have improved quality control processes of Vortex Flow Meter to ensure each export qualified product. Vortex Flow Meter,Vortex Shedding Flow Meter,Vortex Type Flow Meter,Vortex Flow Meter Price Xi'an Gavin Electronic Technology Co., Ltd , https://www.gaimcmeaso.com
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