Hard alloy gun gets the introduction

16-0.

33mm/1000mm) , low surface roughness (Ra3.

2-Ra0.

1) aperture. Its are gotten cut speed to achieve 30-100 rice / cent above. Domestic explicit shipbuilding, car, engine, engine, chemical industry is mechanical, at present oily the industry such as machinery of oil pump, mine and fluid casting die gets applied extensively. ※ my company's producible gun gets 30mm of φ of ～ of norms φ 3mm. The gun of my company production gets ※ to length can press an user completely to need and be decided. 2, service instruction: 1, when be being used, must choose the guide-post bushing that dimension suits first, the clearance of guide-post bushing and gun broach ministry maintains in 0.

003mm--0.

In 008mm, the machine tool main shaft that use gun gets must have taller axial and radial tigidity, guide-post bushing and main shaft should have taller coaxial to spend. In bore process, by treatment material (especially cast) bore position should not rupture, stomatic etc impurity, can cause collapse blade otherwise, turn around even. When using, answer to choose cutting dosage correctly. Usually, cutting speed: V=1.

1-1.

65 meters / second, feed: S=0.

015-0.

03 millimeter / turn, oil pressure: P=2.

5-6.

0Mpa, discharge: Q=0.

2-0.

65 litres / second. 2, the cutting liquid that gun getting uses is more exquisite, it is affected directly by the precision of treatment aperture. Must choose appropriative gun to get oil. General gun is gotten with cutting fluid extremely due press additive, oily film is formed in order to assure below high pressure, prevent generation doing to grind. The viscosity of cutting fluid and bore diameter are concerned, the diameter is smaller, viscosity is lower. The cutting oil that sends toward the gun to get cutting area and general machining photograph control muscularity, flow than having big, filter the characteristic with tall precision. Discharge should follow the accretion of hole depth and increase, in order to make sure cutting oil has larger velocity of flow, achieve unobstructed to discharge the purpose of bits. 3, grind a method again: After gun getting wears away, need seasonable and correct blade to grind, when blade is ground, must be in grinder of all-purpose cutting tool or special blade grind gun of machine tool admiral to get outfit undertake on special fixture blade is ground, can choose granuality 120 colophony diamond emery wheel of the left and right sides undertake blade is ground, every time blade wears face of the blade after repairing those who grind horn of inside and outside only. Must assure proper geometrical point of view and blade pointed position. 4, order goods notice: 1, diameter of gun broach ministry and noncombatant duty must raise when ordering goods (or the public errand that be reached by treatment aperture) and what the gun gets is full-length. 2, need a specification to be gotten by treatment material and gun petiole appearance, dimension. Reamer of 6 knife gun introduces double blade of hard alloy odd blade the cutting tool of Kong Jingjia labour that reamer of hard alloy gun is a kind of ideal, blade ministry uses integral hard metal or set a type structure, cutting tool durability is tall, precision is good, can be amounted to by precision of treatment hole size H7 above, linearity ＜ 0.

1/1000mm, circularity ≤ 0.

005mm, exterior surface roughness ≤ Ra0.

8um, use extensively at the industry such as machine tool, car, aviation, engine. When ordering goods, make clear please: D of diameter of ministry of blade number, blade, overall length L reachs petiole size. CNC Milling