1. What kind of cooling and lubrication is used for extruding taps?

Low carbon steel, aluminium and aluminium alloy, brass, brass vegetable oil, sulfurized cutting oil; molybdenum disulfide, grease, oleic acid for stainless steel. Generally speaking, the material is processed, in fact, mass production, direct use of emulsifier on good machine tools can make good emulsifier not only cool, but also lubricate; molybdenum disulfide is a better lubricant, the price is higher, but the effect is quite good, there are solid, tapping machine can be edge coating.

2. How to distinguish between universal tap and extruded tap?

General taps have cutting slots, while extrusion Taps have no cutting slots.

3. Extrusion tap processing screw teeth is to extrude the valley material to flow to the tooth peak, the material does not produce loss.

4. Extruding tap is relative to cutting tap. Ordinary taps are cutting taps, and tapping with them is to obtain internal threads by removing metal. The extrusion tap extrudes the inner hole metal through the rib of thread on the tap, filling the metal with the tap alveolar after deformation, and forming the inner thread after the tap withdraws. Extrusion taps are suitable for tapping tough materials, such as aluminium alloy, copper alloy, stainless steel, low carbon steel, etc. The internal thread formed has high finish, high precision and high strength. The required bottom hole size is different from that of tapping.

Hangzhou GSR-Threads Tools Co.,Ltd

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