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vacuum brazing is often conducted in a vacuum chamber, this means that several joints can be made at once because the whole workpiece reaches the brazing temperature. vacuum brazing method realizes a shorter construction period, work environment improvement, enhancement of strength due to degassing and reduction of distortion due to wholly heating. The advantages include:

1.No oxidation, clean surface, environment-friendly .
2.Easy temperature control .
3.Brazing max temperature available up to 950° .
4.High brazing strength, 2 times higher than induction welding .
5.No tip loss due to heat during cutting .
6.Reduction of distortion even every small tool inserts can be brazed .
7.Can achieve mass production, can produce more than 200 tools at a time;
8.Easy to operate, more convenient is that a tool with more than one head can be welded at the same time;
9.Increase the strength to ensure the consistency of welding.
Brazing processing:
1. ultrasonic cleaning, put the work piece into the ultrasonic cleaning machine for 15-20 minutes .
2. brush on paste and put diamond. Set diamond tip on the shank .
3. Drying, adjust the drying oven at 210 degree for 10-30 minutes .
4. Shave extended paste  off .
5. Brazing, Put the workpiece into the high speed vacuum brazing machine, according to preset program welding. 
Vacuum brazing machine is used for brazing between superhard materials, tungsten carbide, ceramics and all kinds of diamonds. 
Materials : ND( natural diamond), artificial diamond, PCD, PCBN, CVD and cermet,etc.
Substrate materials : cermet,tungsten carbide,steel, stainless steel, steel alloy and ceramic,etc.
 

 

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  • Applications of PCBN tools
    09 November 2021

    Applications of PCBN tools

    Because of PCBN has high hardness and wear resistance, do not react with iron group metals at high temperature of chemical inertness, so it is mainly used for high hardness material and machining of difficult-to-machine materials, such as hardened steel, high alloy wear resistant cast iron, high temperature alloy, high speed steel, surface spray welding materials, sintered metal materials machining difficult-to-machine materials.

  • Advantages of processing aluminum with PCD tool
    04 November 2021

    Advantages of processing aluminum with PCD tool

    How to select PCD tool? Generally speaking, the larger the PCD size, the stronger the tool wear resistance. Usually finishing or super finishing, the selection of fine particle PCD, and coarse particle PCD tool selection. Tool manufacturers often recommend the use of fine particle PCD grades for silicon-free and low-silicon aluminum alloys and the use of coarse-particle PCD grades for high-silicon aluminum alloys for the same reason. PCD tool processing surface quality in addition to see the granularity of the tool, also mainly depends on the quality of the cutting edge of the tool, so the quality of PCD tool must be better. PCD cutting edge common processing methods generally have two kinds, one is through the way of slow-feeding wire cutting processing, this way of processing cost is low, but the quality of the edge is general. And the other is through laser to rough machining, the cost is slightly higher, but the quality of the edge is much better than slow-feeding wire cutting processing. There is another is to use laser rough machining and then grinding to finish, the edge quality is best.

  Add:  Zhongyuan Rd, Zhongyuan District, Zhengzhou, 450001, Henan, China

  Tel: +86 13323855288

  WhatsApp:+86 13323855288

  E-mail: pcd@moresuperhard.com