The function characteristic of material of new-style coating hard alloy
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5YW1 radical 1750 ~ 1850... 6.
7 ~ 7.
2YG6 radical is made an appointment with 1550... about 5.
2300600 ~ of 5FTC11650 ~ 10004.
3 ~ 5.
2030860 ~ of 8FTC21800 ~ 11004.
8 ~ 5.
A large number of tests that we have 4 tests result and the mechanical property that analyse data of FTC1, FTC2 make clear, use base material to be YT, YG, YW kind wait for powder of hard alloy coating to be after agglomeration, the mechanical performance of income data is poorer, its interior bestrews micro-crack, hard sample of wear bending strength. Later, we match to go up with the foundation of chemical consistence in the physics of mature material, to matrix powder medium carbide scale undertakes adjustment, make FTC1 of gotten new-style coating material, FTC2, showed good mechanical performance, hardness is apparent excel hard alloy, with close of material of pottery and porcelain; And bending strength is higher than material of common pottery and porcelain. Measure gotten mechanical property to see right table. Its are mechanical the test method of function: With curved a law to measure bending strength at 3 o'clock; Measure with impress law rupture tenacity; With Rockwell hardness plan measure hardness. Graph face of the knife after cutting tool of steel of hard T10A of 1 cutting temper by dipping in water wear curve pursues effect of wear curve cutting analyses area of the knife after cutting tool of steel of hard T10A of 2 cutting temper by dipping in water to examine the cutting effect of material of new-style cutting tool, mix with cutting tool of cutting tool of common hard alloy, pottery and porcelain respectively cutting tool of coating of pottery and porcelain of CVD law Al2O3 has comparative cutting test. Graph 1 it is cutting tool FTC1, L55, YT15 in V=75 M/min, f=0.
1mm/f, ap=0.
When steel of tool of hard T10A of temper by dipping in water of the cutting below 15mm cutting condition hind the wear curve of knife face. By the graph 3 1 wear curve that go up can be seen, because workpiece data is harder, when cutting length is 530m, face of the knife after cutting tool of YT15 hard alloy wears away to already was achieved 0.
58 Mm; And after cutting tool of L55 pottery and porcelain and length of cutting of FTC1 of new-style cutting tool achieve 2650m, knife face wears away after about only 0.
3 Mm, and wear out condition is similar, but of FTC1 wear away even a few slighter than L55. Graph 2 it is cutting tool YB01, FTC1, FTC2 in V=71.
5m/min, f=0.
1mm/f, ap=0.
When steel of tool of hard T10A of temper by dipping in water of the cutting below 15mm cutting condition hind the wear curve of knife face. By the graph 3 2 wear curve that go up can be seen, because workpiece data is harder, when cutting initial stage, FTC1, FTC2 because coating is thinner, knife face wear extent should compare YB01 after big. But, cutting tool FTC1, FTC2 enters pulverous coating material to wear away normally after level wear away the even stability that keeps opposite, and of cutting tool of coating of BY01 pottery and porcelain wear away normally distance is opposite shorter, enter after cutting length achieves 520m wear away quickly level. Because coating of pottery and porcelain already was ground basically right now,this is, its cutting effect also is reduced greatly. Additional, YB01 is in cutting process, knife face has conch shape to flake before, because cutting power is greater,this may be when squeeze coating crack cause, affected the sufficient play of coating efficiency. FTC1 of cutting tool of new-style coating material, FTC2 won't produce damaged commonly when cutting speed is inferior. In comparative experiment, when YB01 cutting tool hind knife face wears away achieve 0.
When 3mm, right now cutting tool coating can produce effect effectively no longer in cutting, point of a knife, edge becomes blunt, the oscillatory aggravate in cutting, already machined the surface very coarse, cutting tool already cannot undertake cutting almost. According to the experiment computative, the YB01 of cutting tool of coating of pottery and porcelain that FTC1 of cutting tool of new-style coating material, FTC2 should obtain than using CVD method raises one times at least in the service life when hard steel of cutting temper by dipping in water. Epilogue uses sol - gel method, in carbide powder surface Tu Fubao is thin an Al2O3, become its agglomeration cutting tool material again, have grain petty and even and have very tall hardness and higher strength. FTC1 of cutting tool of material of this kind of new-style coating, FTC2 is when hard steel of cutting temper by dipping in water, cutting function and close of cutting tool of pottery and porcelain, apparent excel hard alloy and Al2O3 coating cutting tool, showed good integrated cutting performance, it is stuff of a kind of new-style cutting tool that has latent capacity of very great progress. CNC Milling