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Grinding wheel with slow feed and deep cutting grinding
Creep feed deep grinding also called deep grinding or grinding it is to cocoon cutting depth larger (up to 30M or more) and table feed grinding is very low, with one or several grinding to the size and shape of precision required by can, suitable for grinding high hardness and high toughness materials, such as heat-resistant alloy, stainless steel, high speed steel type surface and groove. In recent years, Germany, the United States, Japan and Switzerland have developed a series of special progressive drawing forming grinder, and have also added the feed grinding function of C, DC motor and rolling screw to the famous products, which has promoted the practicality of slow feed. The research and application of slow feed in China has also achieved remarkable results.
When the feed is rugged, the contact between the grinding wheel and the workpiece is only once or several times, and the impact chance is less than the general reciprocating grinding. It can extend the durability of the grinding wheel and maintain its forming accuracy. After full deep forming grinding, a certain reciprocating grinding can be used to combine the full deep forming and the small heat load fine grinding, and the grinding precision can be improved.
The deep and slow feed deep grinding is characterized by the growth of the contact arc between the grinding wheel and the workpiece and the long chip. The surface burn phenomenon of the workpiece should be avoided. The feed speed of the workpiece is very low when deep grinding is applied, which is relative to the radial feed speed of the position grinding wheel, and the radial wear is relatively low. This is a great advantage for the workpiece formed by the rough and tip grinding.
The cutting depth of the grinding wheel of slow feed grinding is about 1000 times larger than that of ordinary grinding, and its grinding force is 2-4 times higher than that of ordinary grinding (at the same metal removal rate).
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