We suggest you select the correct bottom hole diameter according to the type of taps and the material of the taps. This requires us to select the suitable tap tools before tapping. With the increasing number of new materials and the corresponding processing difficulties involved, we should also upgrade the raw materials of taps to meet the market requirement. The tap does not match the processed raw material For example, the tap performance would be impacted by the tap size, the number of tap flutes, the angle design of the tap and so on. In addition, different tap designs are used in different working situations. High-quality taps should be used for tapping parts with too high hardness, such as cobalt-containing high-speed steel taps, cemented carbide taps, coated taps, etc. This may be related to the Main materials, tool design, heat treatment, machining accuracy, coating quality, etc. The tap or bit quality is very important. Here we listed below one by one for your information. Generally speaking, there are 8 main factors that cause the tap breaking. In this part, let’s learn about why do the taps break. After all, constant tapping is the best way. Though there are many different good methods to take the broken tap out, it is better to analyze the causes of the tap fracture and find ways to prevent the tap fracture before tapping. Reminder: Don’t use it on substrates of magnesium, high-carbon tool steels, Chrome-Moly 4130 or 4140, cast iron, copper alloys or zinc. Especially when the substrate materials are stainless steel, titanium alloys and aluminum alloys. It will dissolve the broken taps and cutting tools without damage to the substrate material. In the market, you could also buy a chemical solution called “Tap-X Broken Tap Removal Kit”. For example, the nitric acid solution can corrode the high-speed steel taps without discarding the workpiece. Some corrosive chemical solutions are used to corrode the tap. If possible, you can directly use the punch to knock out the middle of the tap or enlarge the hole on the basis of it( Easy to use) 9. Using an air drill to reverse take the broken taps out depends on the hand feeling because the tap is not directly drilled out, but with slow speed and a little bit of friction (similar to Car Semi clutch) to make the tap rotate out. If possible, you can try to chisel out a slot at the broken position of the tap, and then screw it out slowly through the reverse direction by a screwdriver. Therefore, it is widely used in CNC machining services. It has a simple structure and it’s convenient to use. In addition, a tap is a tool for processing various kinds of medium and small-size internal threads. The cutting speed or feed rate is not reasonableīefore we come to the question “How to remove broken taps”, please allow me to introduce “What is a tap?”.īriefly, a tap is a tool for machining internal thread, and some grooves/flutes are made along the axial direction to discharge the chip produced in the process. The quality of cutting fluid and lubricating oil is not good The machine does not meet the accuracy requirements of the tap There are some material problems with the tapping part
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