There have been many gears produced, including gear hobbing, gear milling, and gear shaping, among various processes. Today, we are discussing gears made using metal powder, specifically utilizing powder metallurgy technology.Powder metallurgy gears are widely used in various automotive engines. Although they are very economical and practical for large-scale production, there are still areas that need improvement in other aspects. Let’s take a look at the advantages and disadvantages of powder metallurgy gears.
Advantages:
1) Generally, the production process for powder metallurgy gears involves fewer steps.
2) When manufacturing gears with powder metallurgy, the material utilization rate can reach over 95%.
3) Powder metallurgy gears have excellent reproducibility. Since they are formed using molds, under normal use conditions, a single mold can produce tens of thousands to hundreds of thousands of gear preforms.
4) The powder metallurgy process can integrate several parts into a single manufacturing process.
5) The material density of powder metallurgy gears is controllable. herringbone gears, and helical gears with a helix angle greater than 35 degrees. It is generally advisable to design the helix angle of helical gears within 15 degrees.
4) The thickness of powder metallurgy gears is restricted. The depth of the mold cavity and the stroke of the press must be 2 to 2.5 times the thickness of the gear, and considering the uniformity of the longitudinal density of the gear height, the thickness of powder metallurgy gears is very important.What is powder metallurgy?
5)It is a process technology for producing metal or using metal powder (or a mixture of metal powder and non-metal powder) as raw material, which is shaped and sintered to manufacture metal materials, composite materials, and various types of products. Widely defined, the powder metallurgy product industry includes iron tools, hard alloys, magnetic materials, and powder metallurgy products. More narrowly defined.
