gear optical quenching increased method

The greatest failing of this procedure is the tooth root easy stress concentration, inclined to broken up teeth and make tooth surface hardness of the jagged distribution of the high-frequency coil is unimaginable to be altogether logical with toothed.

helical worm geared motor 2) chemical heat automobiles, tractors and other big burden of fast gear tooth surface to build the matrix has a robust operation wear-resistant, low carbon steel surface after carburising quenching, tempering, or total average carbon steel quenched and tempered surface infiltration nitrogen and other chemic heat treatment. Such procedures could match the operation demands, merely a long procedure, high energy using up, high up cost, and have environmental contamination. Additionally, the carburization handling of the gear big distortion, gain the workload of the later finishing up; flaking off of the nitriding handling, the gear engaged.

III) total quenched and gear shaft and large burden, low-speed big gear quenched and tempered to forbid brittle fracture is an crucial indicator of high hardenability materials, to match multifarious operation demands ready to use the same procedure, quenched and tempered treating, to assure that the shaft and the matrix is ??brittle fracture doesn't happen below a grievous burden, both sexual procedure, at the expense of the hardness of the tooth surface, to keep down the abrasion opposition.

2 laser transformation solidifying features of laser stage transmutation strengthening the laser beam scans the workpiece, the workpiece superficial is rapidly heated up to above the AC3 the decisive point, the heat layer martensite temperature directly into the part of thermal conduction of the workpiece matrix spot away or bainite fields, the happening of martensite state change or bainite transformation, all over stage transformation strengthening procedure.

1) hardenability hardenability concerns to the metal stuff inward the cooling off procedure afterward heating up to the austenitization, while it's inward the pearlite transformation part austenite decomposition rate. Decomposition speed short hardenability set off slow fine hardenability. Austenite starts to break down prior to incubation time, the material as long as the incubation time across this temperature array, you are able to catch entirely quenched structure (martensite or bainite); Otherwise, but partly quenched arrangement or entirely not quenched body structure.