密臀av,大胆亚洲成人社区,美国成人超碰在线播放,日韩操熟妇

Powder metallurgy is a very good processing technology, it produced products, whether performance or quality are very good, has been recognized in various industries, recognition and widely used. This is more obvious in the automotive industry, for the automotive industry, the powder metallurgy technology, parts are their first choice. For the user, the most important powder metallurgy gear is the tooth and its rounded corners of the accuracy, these are generally through the rigorous calculation can be obtained. See how the specific work to operate?

When using the powder metallurgy technology to sadd the gear, first calculate the gear cavity of the tooth profile, and then combined with the gear tooth root transition curve to modify the product to get the best rounded corners. In this process, but also consider the powder metallurgy gears finite element tooth root bending strength and the best tooth deformation, etc., to ensure the perfect gear products. The above-mentioned calculation of the tooth profile of the cavity of the sintered gear is generally obtained by using the tooth profile normal method, so that the contact point can be established directly from the position of the given point and the angle of the gear relationship. So that we can at a glance, and processing time more convenient.

At present, the powder metallurgy has been recognized as a green industry, sustainable manufacturing technology, is a lot of traditional technology is not so, it is so powder metallurgy will be so popular in the future will become the mainstream industry.