China Wholesale Tap Grinder Machine Manufacturers - Spiral Flute Tap – MeiWha

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Following are recommendations for the degree of spiral for various materials:

Spiral flute taps are more suitable for processing non-through hole threads (also called blind holes), and the chips are upward during processing discharge. Due to the helix angle, the actual cutting rake angle of the tap will increase as the helix angle increases.

• High spiral flutes 45° and higher – effective for very ductile materials like aluminum and copper. If used in other materials, they will usually cause the chips to nest because the spiral is too • fast and the chip area is too small for the chip to form correctly.
• Spiral flutes 38° – 42° – recommended for medium to high carbon steel or free machining stainless steel. They form a chip tight enough to easily evacuate. On larger taps, it allows for pitch relief to ease the cutting.
• Spiral flutes 25° – 35° – recommended for free machining, low or leaded steels, free machining bronze, or brasses. Spiral flute taps used in brass and tough bronzes normally do not perform well because the small broken chip will not flow up the spiral flute well.
• Spiral flutes 5° – 20° – For tougher materials such as some stainless, titanium or high nickel alloys, a slower spiral is recommended. This allows the chips to be slightly pulled upward but does not weaken the cutting edge as much as higher spirals will.
• Reverse cut spirals, such as RH cut/LH spiral, will push the chips forward and are usually 15° spiral. These work especially well in tubing applications.

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China Wholesale Tap Grinder Machine Manufacturers - Spiral Flute Tap – MeiWha detail pictures

China Wholesale Tap Grinder Machine Manufacturers - Spiral Flute Tap – MeiWha detail pictures


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We know that we only thrive if we can guarantee our combined rate competiveness and good quality advantageous at the same time for China Wholesale Tap Grinder Machine Manufacturers - Spiral Flute Tap – MeiWha , The product will supply to all over the world, such as: Detroit, Cyprus, British, we have complete material production line, assembling line , quality control system, and the most importantly, we have many patents technology and experienced technical&production team, professional sales service team. With all those advantages, we are going to create"the reputable international brand of nylon monofilaments", and spreading our products to every corner of the world. We are keep moving and try our best to serve our customers.
  • In our cooperated wholesalers, this company has the best quality and reasonable price, they are our first choice.
    5 Stars By Harriet from Munich - 2018.12.25 12:43
    In China, we have many partners, this company is the most satisfying to us, reliable quality and good credit, it is worth appreciation.
    5 Stars By Mark from Melbourne - 2018.12.10 19:03
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