Q:In the lathe, with a floating reamer machining material for cast iron, diameter of 55mm hole, leaving margin 0.1mm, lathe speed is appropriate!!

Not too fast. Sooner, there will be errors

Q:Which is the higher accuracy of the reamer and reamer?

The accuracy of the reamer is higher

Q:What are the major brands of reamers I?

Domestic CRM, slightly higher accuracy

Q:Spindle runout of less than 0.003, the diameter of the cutter size, internal cooling. Excuse me, where is the reason?.

The tool flank surface is not smooth enough, the inverted cone angle is not correct, and the cooling is not enough.

Q:What a few general tolerances reamer level holes to machining, such as phi 10H7, the high precision hole boring

General machine reamer is only guaranteed diameter tolerances, boring can ensure the cylindricity and position tolerance. 10H7 is generally used as a positioning pin hole hole, usually has the position degree, then recommend the use of CNC machine milling cutter.

Q:What is CNC reamer?

Generally refers to the single indexable blade reamer (currently only international companies only), such as Sweden and Germany is MAPAL indexable single edge reamer, cutting smoothly without vibration, high machining accuracy, reaming allowance, high cutting speed, shape and position error is small, long tool life;But some people put the reamer in the NC machine tool called NC reamer, the scope is big, a reamer, common straight shank machine machine reamers with adjustable pressure, expansion reamer, reamer taper and taper shank reamer etc..

Q:What is the higher accuracy of phi 25H8 reamer and phi 25H9 reamer?

The 25H8 reamer is more accurate than the 25H9 reamer. The so-called, refers to the hinge hole of high precision H8 H9 high precision hole hole.

Q:The sale of these spiral reamer (punch) is illegal? Crime?12 blade spiral reamer, right helix 2-3 degreesFront diameter 5.45 to 5.5 mm, rear diameter 5.40 to 5.5 mm, middle diameter 5.75 mm, line depth 0.1mm or so

The sale of these spiral reamer (punch) is not illegal or criminal.The spiral reamer (punch) is just ordinary industrial tools, not control apparatus. Of course, if the sale of the spiral reamer, no business license, fake and shoddy products, unknown source or origin, is illegal, but it is also a concept.A reamer is a rotary tool with one or more cutter teeth for removing thin metal on the surface of the machined hole, a rotary finishing tool with a straight edge or a spiral edge, used for reaming or repairing holes.

Q:Mr. Cui, Kong is 9.97. I want to use my 10H7 reamer to reaming the hole with my hand. The book said that small or excessive margin will affect the reaming accuracy, then 0.03 of the margin can also be reaming to hinge it? I don't quite understand why the small margin affects the accuracy of reaming If so, what else would be done with thick hinges and precision hinges?.

Each knife distribution margin will be not the same, you are asked to assign allowance Oh, recommended by electroplating diamond reamer, you do not know the accuracy is not high, if the demand is high, is recommended by electroplating reamer, it can be divided into coarse and fine reamer to hinge, to consult Henan stone diamond reamer.

Q:Usage of valve reamers for motorcyclesCG150 CG125 bedroom, 110, reaming of motorcycle valve reamers?And the order after which the reamer is used?

Operation steps of motorcycle valve reamer:First use the most sharp reamer (angle minimum reamer, less than 45 degrees) to pull the first slope of the valve seat airway,Then change the reamer with the medium degree of sharpness (the angle of the most moderate reamer, equal to 45 degrees) of the reamer, the valve seat sealing face,Finally, the maximum angle (reamer reamer, maximum angle greater than 45 degrees) the winch cylinder valve excessive arc, 3 steps are not interchangeable and wrong, the center must guide rod and valve reamer circle concentric, 3 plane hinge width to be the same, after the winch with valve and valve grinding sand milling grinding. You can.