How to use and read the micrometer A, the use of the micrometer 1, before the use should check the zero point, slowly turn the tuning knob, make the rod and anvil contact, by the end of ratchet sound when moving feet mould scribed line on the sleeve (activity) shall be and fixed on the…
Vernier caliper model and specification There are many specifications of vernier calipers, including 0-100mm, 0-150mm, 0-200mm, 0-300mm, 0-600mm, 0-1000mm, 0-1500mm, etc. In addition, the accuracy of the vernier caliper is also 0.01mm, 0.02mm and 0.05mm.The reading method of a vernier caliper is similar to that of a micrometer. It is structurally composed of a main…
What is the difference between a milling cutter and a drill? Milling cutter: A milling cutter is a rotating tool with one or more teeth. When working, each knife tooth cuts off the allowance of the workpiece intermittently in turn. Milling cutters are mainly used for machining planes, steps, grooves, forming surfaces and cutting off workpieces…
Common Tap and die Coating Types 1. Steam oxidation Steam oxidation treatment is a surface oxidation treatment technology. The tap is in contact with steam at a temperature of 540~560°C. In high-temperature water vapour, a layer of blue oxide film is formed on the surface. This oxide film has a fine structure and can be…
How to Choose a Woodworking Drill Choosing the right woodworking drill bit is essential for any woodworking project. The right drill bit can make the difference between a successful and unsuccessful project, so it’s important to know what to look for when selecting the right bit. When selecting the right drill bit, one of the…
Common materials for milling cutters 1) High-speed tool steel (referred to as high-speed steel, front steel, etc.), divided into general-purpose and special-purpose high-speed steel. It has the following characteristics: a. The content of alloy elements tungsten, chromium, molybdenum and vanadium is relatively high, and the quenching hardness can reach HRC62-70. At a high temperature of…
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