Model No.: 23622watch buckle CNC and powder metallurgy
We specialize in manufacturing watch components such as watch cases, clasps, and watch hands. Here, I would like to share an analysis of the advantages and disadvantages of using powder metallurgy in the production of watch clasps.
Powder metallurgy is a process technology used to produce metal materials, composite materials, and various types of products by obtaining metal powder or using metal powder (or a mixture of metal powder and non-metal powder) as raw materials, followed by shaping and sintering. Powder metallurgy shares similarities with ceramic production as both involve powder sintering techniques. Therefore, a series of new powder metallurgy techniques can also be used for the preparation of ceramic materials. Due to the advantages of powder metallurgy technology, it has become a key solution for new material challenges and plays a significant role in the development of new materials.
Powder metallurgy is a process technology that uses metal powder (or a mixture of metal powder and non-metal powder) as raw materials, and through shaping and sintering, manufactures metal materials, composite materials, and various types of products.
Advantages:
Generally, the manufacturing process of powder metallurgy gears is simpler.
When manufacturing gears using powder metallurgy, the material utilization rate can exceed 95%.
Powder metallurgy gears have excellent repeatability. Since powder metallurgy gears are formed by pressing with molds, under normal operating conditions, a set of molds can produce tens of thousands to hundreds of thousands of gear blanks.
Powder metallurgy allows for the integration of multiple parts into a single component.
The material density of powder metallurgy gears is controllable.
In powder metallurgy production, the roughness of the working surface of the mold is very good to facilitate the ejection of the pressed blanks.
Disadvantages:
Mass production is necessary. Generally, a batch of 5,000 pieces or more is suitable for production using powder metallurgy.
The size of the parts is limited by the pressing capacity of the press. Presses typically have a pressure range of several tons to several hundred tons, and the diameter is usually within 110mm for powder metallurgy production.
Powder metallurgy gears are limited by their structure. Due to pressing and mold considerations, it is generally not suitable for producing worm gears, bevel gears, and helical gears with a helix angle greater than 35°. It is recommended to design helical gears with a helix angle within 15°.
The thickness of powder metallurgy gears is limited. The cavity depth of the mold and the stroke of the press must be 2 to 2.5 times the thickness of the gear. At the same time, considering the uniformity of the longitudinal density of the gear height, the thickness of powder metallurgy gears is also important.
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