Turning sharpening operation
The sharpening of the turning tool is a basic operation with high technical content in the cutting process. The operator needs to be familiar with the relevant theoretical knowledge and sharpening principle, and master the sharpening method and operation skill. In order to facilitate beginners to familiarize with and remember the concepts, methods and techniques of turning sharpening as soon as possible, the author specially writes the relevant content as follows: 1 Types and materials of common turning tools, selection of grinding wheels There are five types of commonly used turning tools, and the cutting uses are different. The outer hole and the thread are also commonly used for cutting and forming; There are three types of turning edges, and the straight line curve is combined with compounding; There are many types of turning tools, commonly used carbon steel alumina. Cemented carbide silicon carbide, selected according to the material; The grinding wheel particles are divided into grain sizes, and the thickness is different. The coarse grinding wheel grinds the rough turning tool, and the fine turning knife selects the fine grinding wheel. 2 Turning sharpening operation skills and precautions Sharpening and checking first, equipment safety is the most important; After the grinding wheel speed is stable, the two sides of the knife hold the vertical wheel side; Two elbows are clamped at the waist, and the sharpening is smooth and anti-jitter; The height of the turning tool must be controlled, and the grinding wheel is at the horizontal center; The pressure of the knife pressing wheel is moderate, and the reaction force is too large to slip; The hand-held turning tool moves evenly, and the warm and hot hands are temporarily removed; Care should be taken when the knife is away from the grinding wheel to protect the tip of the blade from lifting first; High speed steel knives can be water cooled to prevent annealing and hardness; Hard alloy is not water quenched, and quenching is easy to crack the tool; After stopping grinding and stopping, the person disconnected from the machine room. 3 90°, 75°, 45° and other external turning sharpening steps Rough grinding first grinds the back of the main body, and the tail end is biased to the left; The blade head is upturned by 38 degrees, and the back angle friction is reduced; Then grinding the back of the pair and finally sharpening the rake face; Grinding out in front of the front corner, first coarse and fine sequence clear; Fine grinding first grinds the front, and then grinds the front and back of the main; When grinding the sharp edge of the knife, hold the front pivot point with your left hand; Rotating the tail of the rod with the right hand, the arc of the tool tip is naturally formed; The flat edge is straight and steady, and the correct angle is the key; Sample corners are carefully inspected and experienced. Concerned about surprises Tag: Turning tool Flat blade Operating skill Oral reaction Previous: Tool mounting for CNC lathes Next: Hard turning technology and key technologies
Galvanized Steel Fence
Steel fence is also known as steel picket fence,
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Material: Galvanized steel Q195 or Q235
Finish: galvanized and powder coated
Main market: America, Canada, Australia, Europe, etc
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