Q:What are the causes of internal bore runout in lathe reaming?

The tailstock is missing. Look at it

Q:The workpiece material is Q345D, is the whole hard alloy reamer diameter 18 6 blade laevorotatory right edge reamer, now found out the hole hinge inside there is always a circle cut, when processing the machining allowance for unilateral 0.2mm, reamer speed 120r/s, feed rate is 45mm/min, the cooling liquid is emulsion, which can master under the guidance, the argument is correct. It's better to give a machining parameter, s and F, thank you. The tool is added to several beds, beating about 1 wires.

For you the double-edged cutter, S and F on the line four pin gear extrusion

Q:What's the result of the reaming of the inside hole of the reamer?

You are using manual reaming Reaming, or drilling reaming? General artificial hand reaming, as long as the hands evenly twisted out of holes is not elliptic, if two handed force is not uniform, then wring out the hole could be elliptical; if you are using drilling reaming, drilling machine main shaft the hole is not concentric with the workpiece, the reamer reaming when leans to one side with Jin twisted down hole was wrung may be ellipse.

Q:How can the reaming of stainless steel extend the life of the reamer and allow Kong Guangliang to help with various problems?

Require bright words, need to use two cutter, rough fine twisted twist. Slow down. Add oil. And the best use of the spiral reamer.

Q:Why are the dimensions of the reamer larger than the size of the hole?

The reamer is fine cutting tools a certain size of the hole, the hole in finishing before must leave the finishing allowance, so the hole than the knife which small dumplings,There is a movable reamer, the blade can be adjusted in a certain range.

Q:If you want to drill out 20 of the hole with a reamer, what size drill should you use first?

Because some of the drilling bit out of the hole is too large, such as drilling 19 of the drill hole is often 19.1/19.2, this situation should be more often encountered. If the reamer you use for machining is of good quality, it is recommended that the drilled hole be 19.9. Usually, the allowance for the reamer is 0.1-0.2mm. As to how large the drill is, it depends on how large the hole you drill out of. You can try using the 19.5 bit.

Q:What's the difference between the reamer and the milling cutter? They all look the same

Depends on what you use, the milling cutter is broken, you can grind the reamer can not,

Q:The difference between the reamer and tool?

The boring tool is used to correct the position of the hole and ensure the general requirements of the accuracy of the hole, the hole reamer is used to ensure the dimensional accuracy and surface finish.Boring is generally a nose, reamer is generally 2 or more than 2 of the blade

Q:To machining M8, blank hole reamer processing thread with what specifications of the machine (bottom)?

M8X0.75 is in diameter 7.2M8X1 is in diameter 6.9M8X1.25 is in diameter 6.6

Q:Machine is a horizontal machining center Huakai, machining hole size is 14mm through hole, the first with 13.5 bits, then the 14 hinge reamer, reamer is 120 speed 320 feed speed, casting hardness is HB170 ~ 241, made out of the hole often bell shaped, reamer blade also day after day grinding, grinding or not, sometimes for a new reamer like bell. Who can help me analyze the reasons?.

I said you are so talented! Leave 0.5 of the remaining material! More than 13 of the drill bit is taper shank drilling, 0.5 mm a specification. But our experience shows that all the following 4MM are left in excess of 0.1MM. 4MM more than 0.2MM remaining material. To help you develop the process; hit the center drill - with D8 drill THR through; - 13.5 drill reaming - using D8 milling round processing, inverted 13.8THR (through) - with D8 milling round processing, DEP (depth) 8MM as a guide. Dimensions are guaranteed to be around 13.95 with 14 reamer G81 instruction S120F100 plus coolant. Not in place, you cut me. There are reamer, you do not go grinding; kill you do not rub; 14 of the reamer should be welded machine reamers? You see, the front bevel is not a chamfer. It's a cutting edge. It's a guiding role. After grinding, it's almost useless. We can use a reamer for a long time. And did you see the deflection of the reamer on the tester? Machine reamers, yaw, no-load control in 0.02, you can easily guarantee to +0.01 to +0.015. Reamer S320, when used as a milling cutter? The reamer must not be twisted at high speed, while the iron is cut at high speed without enough time to remove it. Cause extrusion deformation; twisted holes are generally large and small. Generally speaking, you don't have any big problems with 1000/D. D is the reamer size