Tapping is a common internal thread processing method with high efficiency and low cost, but there is also the risk of poor chip removal. Once the machining continues with the chips entangled, it will not end well. The problems of tool breakage or chipping, poor thread accuracy, tooth decay and scratches will follow.
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To solve the problem of chip removal, extrusion taps have found another way to process taps through cold extrusion to achieve chip-free processing. However, due to the special processing method, it is generally used to process materials with relatively low hardness. OSG's multi-functional extrusion tap A-XPF greatly broadens the processing limit of extrusion taps.
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First of all, it adopts a special extrusion cone design, which can effectively reduce the resistance when the tap enters the bottom hole, and suppress the occurrence of chipping.
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Secondly, it adopts a special thread structure and a new relief angle shape, which ensures the rigidity of the tap and avoids the sudden collapse of the thread crest.
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In addition, it also adopts a new VI coating specially developed for taps, which has better hardness, oxidation initiation temperature, adhesion, wear resistance and many other superior properties.
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Under the addition of these factors, A-XPF can correspond to a wide range of processing materials, and has excellent processing performance on high-hardness materials such as high-carbon steel, alloy steel, quenched and tempered steel, and stainless steel.
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Processing case
Let's first look at an alloy steel internal thread processing. The workpiece material is alloy steel with a hardness of 30HRC. Under the condition of 30m/min high-speed machining, A-XPF can also complete 13,000 holes. The tool life is more than 50 times that of previous products, which greatly saves tool costs.
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In the processing of hydraulic components made of carbon steel, the service life of A-XPF is 8000 holes, which is 4 times that of the original product, which improves the processing stability and reduces the price of a single hole by one-third, helping customers realize Reduced costs and increased efficiency.
