The blade that cuts off knife and recessing knife is ground

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  • source:EDON CNC Machining
Knife of straight form recessing and the geometrical appearance essentially similar that cut off a knife, blade grinds a method roughly identical also. The width that is knife head part only and length have some of distinction, its width and length should according to be being machined the diameter of workpiece and material pledge the case will decide. (One) main operation technology above all blade grinds left minor flank, both hands holds a knife, before lathe tool up, grind at the same time piece left deputy hind horn and deputy slant horn. Deputy hind horn should go to 3 degrees for 1 degree, deputy slant horn arrives for 1 degree 1.

5 degrees. Grind next on the right side of minor flank, angle and left and identical. Then blade is ground advocate from the back, grind at the same time piece advocate hind horn, angle should go to 8 degrees in 6 degrees between. Final blade is ground in front the horn before mixing, there is surface of emery wheel grinding before lathe tool, horn goes to 20 degrees in 5 degrees commonly before between. (2) the blade that cuts off knife and recessing knife is ground by the design requirement blade grinds lathe tool of a hard alloy, horn is 5 degrees go to 20 degrees before. Advocate hind horn goes to 8 degrees for 6 degrees. Two deputy slant horn arrives for 1 degree 1.

5 degrees, two deputy hind horn is 1 degree goes to 3 degrees, we are with this graph exemple will introduce blade to grind a method. Two side minor flank mixes kibble in front, must notice a bits chamfer is unfavorable when the operation grind too greatly, it is commonly 0.

75 to 1.

5mm. If grind too deep, knife head intensity is poor, break off easily. More cannot in front grind low or wear step, cutting of this kind of knife is not successful, discharge bits difficulty, make cutting bear increases, knife head breaks off easily. Next kibble advocate from the back, make knife head shapes basically, advocate hind horn maintains 6 to 8 degrees between. Essence of life is ground in front the horn before mixing, the horn before making achieves formulary angle. Essence of life is ground minor flank and advocate from the back. Grind two side deputy hind should be with the underside of lathe tool when horn accurate, with steel straightedge or examination of 90 degrees of angle square. Be like deputy hind horny a side has negative worth, when cutting off, chafe with respect to meeting and workpiece flank. Be like two side deputy hind horny point of view is too old, knife head intensity becomes poor to break off easily. When cutting off knife and recessing knife, blade is ground is left minor flank is ground normally it is OK to go out, dao Kuan's surplus should be put in on the right side of abrasion. Long grind point of a knife. Requirement advocate answer between edge and two side deputy edge symmetrical peace is straight, the osculatory dot of side of the knife when blade grinds deputy edge and emery wheel surface should be put in the brim of emery wheel to be in, observe the linearity with nap deputy edge carefully. The blade of roundlet head lathe tool is ground as similar as knife of straight form recessing, it is blade is ground only advocate lathe tool front should be grasped to be fulcrum with left hand when edge circular arc, with rear of lathe tool of right hand roll. (3) the problem of easy generation and reason blade are ground deputy slant when horn will deputy slant horn is ground too greatly, will make knife head intensity becomes poor to break off easily so. Still can arise sometimes deputy slant character appears negative worth, deputy edge is rough straight or lathe tool is left abrasion is too much wait for a phenomenon, basically be the examination when blade is ground most the ground spends wrong place not in time to cause with viewing angle. When blade grinds high-speed steel lathe tool appear easily anneal phenomenon. Because force passes,this basically is big or the refrigeration that use water is not seasonable those who cause, when blade is ground, want forcibly measurable, refrigeration wants seasonable, when should not waiting for occurrence anneal, cool again. The razor blade when blade grinds hard alloy lathe tool falls off. Main reason is to had exerted oneself to do sth. fierce, make bit weld produces high temperature and open solder. Sometimes bit solders not firm, blade is ground make also can appear bit falls off. Check lathe tool quality seriously because of before this blade is ground, answering. Bit cannot prevent to fall off to avoid to produce high temperature when blade is ground and cool with water, in case bit disintegrate. Abecedarian had better choose training where a thing can be put to best use to grind first, after according with a requirement via the examination, again formal blade grinds lathe tool. CNC Milling CNC Machining