Powder Metal Process

Powder Metal

Powder Metal Process after sintering: 

The advantage of powder metal process is that parts with complex shapes can be produced economically. However, due to the shrinkage or expansion of the parts during sintering, the size of the parts after sintering is often still not as required.

  • Powder Metal Process Methods: 

Powder metal process methods such as turning, grinding, and shaping must be used to meet the drawing and size requirements.

In addition, the surface or interior of some parts also need to be processed to meet the requirements.

These process include sandblasting, vibration grinding, Heat treatment, blackening, copper infiltration, oil infiltration, resin impregnation, CNC machining, etc.

  • Powder Metal Process Introduction: 
  1. Sizing: Or called correction, shaping; it is to put the sintered part into a mold or jig to press to make its roundness, flatness, parallelism, inner diameter, outer diameter or some dimensions more accurate.
  2. Re-pressing and re-sintering: General powder metal products can only reach about 90% of the density. In order to improve the compact and mechanical properties parts. The double-pressing and double-sintering can be used to increase the density again.
  3. Heat treatment:  The heat treatment is the same as general iron products, including nitriding, solid solution and precipitation.  But the biggest difference is that the powder gold parts have pores, and heat treatment can make the pores the same properties as the surface.
  4. Hardening:  When carbon is contained in the work, the heat treatment method of quenching and tempering can be used to improve its hardness and strength.
  5. Copper Infiltration: Copper infiltration is a common method. After the copper is melted, the pores in the sintered body are used to draw the copper liquid into the part. This method can increase the density to 7.5 g/cm3
  6. Immersion Resining
  7. Joining
  8. CNC Machining: Machining
  9. Tumbling
  10. Sandblasting
  11. Electroplating
  12. Blackening
  13. Oil seepage
  14. Ultrasonic cleaning

More Information: www.paoyuebrands.com

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Additional Resource: https://en.wikipedia.org/wiki/Powder_metallurgy


寶鎰工業股份有限公司創立於1980年,公司位於台灣台南。自成立以來發展穩定且持續成長,也由於產品的應用廣泛及其功能的便捷性受到顧客的支持與愛顧,早己是國際間知名的專業粉末冶金生產製商提。 自創業至今,歷經數十年之努力經營,寶鎰展現了雄厚的研發能力,產品已成功 跨足汽機車、消費性電子、電動工具、工業、辦公事務設備、家電、航太科技與綠能等領域. 公司除了擁有完善的設備製造能力,產品的安全性也朝向ISO及國際的規範,並外銷至中東、東南亞、中南美洲及歐洲等全球。同時成立實驗室和客戶的反饋,秉持著二十四小時回覆的理念,為客戶提供最好的服務。 Pao Yue was established in 1980 as a small plant in Taiwan Tainan city. With rapid growth, the company successfully became an international professional powder metallurgy manufacturer. Today, we are a pioneer in powder metallurgy globally and We offer a “one-stop” end to end solution for our customers. On top of our diverse equipment manufacturing abilities, our products are driven towards ISO and international regulations and export globally covering countries such as Middle East, South East Asia, Central and South America and Europe. With tens of thousands parts sold worldwide, our leading market share is reflected on our drive for customer service; top of the line laboratories and 24 hours after service.


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