Abstract
With the popularization of precision-machining process by the hard tooth-surface gear, special machining tools have also been developed rapidly, which is mainly manifested in as aspects as the application of new materials and cutting tools’ coating technology, the mature of ultra-hard-grain CBN tools’ preparation technology, and the pefecting day by day of tool-structure design and tool-integration technology and so on. This topic introduces the CBN gear’s honingmachining characteristic and designing principles. And it also contains the application status of the ultra-precision tooth surface and the importance of the tooth-surface morphology in the process of gearing transmitting. At the same time, this topic briefly describes several common processes and key processing technologies in the modern gear-manufacturing area.
Highlights
A The gear-honing has a direct impact on the tooth-surface quality and service life of the machined gear as a kind of gear surface-smooth handing technology
The so-called ultra-precision gear refers to the gear of which the manufacturing precision of gear teeth achieves the international gear standard of 1328
T industry manufacturing precision is less than the United
Summary
A The gear-honing has a direct impact on the tooth-surface quality and service life of the machined gear as a kind of gear surface-smooth handing technology. By setting the cutting model and calculating parameters reasonably, the three-dimensional large-deformation cutting process of 45 steel under different speed can be realized by using the single CBN grain. The undercutting material on the cutting layer should adopt the elastic and visco plastic model with thermal analysis ability, and use reasonable contact and separation (b) Ultra-precision CBN tools criterion to simulate the chip shape and temperature distribution. Metal binder is mainly used in cutting grinding, profiling grinding of optical curve grinding machine and grinding h types honing-wheel cutting depth, r and R are single cutting-edge tool, and applied to grind helicla respectively the curvature-radius of the contact point flute of the high speed small steel drill [6]. Formula (2.4) shows that the high cutting speed and low feed speed should be used in gear honing
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