Q:Now the hole is about 5.97. I don't know what to do

I do not know if you use the cooling fluid, and oil cooling, easy to cause shrinkage hole, cutting fluid cooling hole is normal, if the hole is 5.97, you can hinge again

Q:Difference between milling cutter and reamer

Besides they say, the most intuitive is that the blade part of machine reamer is very short, while the neck is very long, so it looks like a long dumbbell.The end mills have longer cutter teeth, accounting for 1/2~2/3 of the overall length of the tool, and the neck is short. The cutter tooth is spiral and has fewer teeth. It looks sharp.People who don't know much about knives do so.

Q:Use and do not use the threaded hole reamer reamer, what do you mean, how to choose the aperture

Thread hole processing technology is generally drilling, and then tapping. Refers to the bottom hole diameter. For example, M10*1.5 ordinary coarse thread screw, the bottom diameter is Phi 8.37 internal thread processing, to the processing of a hole, the hole diameter than the nominal diameter of the small number of threads, the hole is threaded hole. The common thread bottom hole diameter can search the Internet access to "form" the threaded hole diameter, different hole size tolerance zone is slightly different.The empirical formula: ordinary screw diameter =d- (1 ~ 1.1) P type, D - P - pitch diameter of screw. If the thread M10, pitch 1.5mm, calculated by the empirical formula, the bottom diameter of =10- (1 ~ 1.1) * 1.5=8.35 ~ 8.5, 8.4 bits to drill on the line. Processing of general internal thread diameter underport metric - thread path is what. Refers to the bottom hole diameter

Q:Would you like to make a straight hole reamer with an outer diameter of 32, an inner hole of 12, and a tolerance of -0--0.02. The inner hole and reamer must be concentric. How can I do that?

Wire cutting, but the processing fee may be more expensive.

Q:NC machining, the speed and feed of the reamer

There is no accurate data, only experience,,Question is not very professional, do not know how much,With the material, but also with clamping rigidity, tool rigidity, tool size, margin, the requirements of the accuracy of the drawings and so onNot a unified answer, in fact, the actual situation depends on the processing of the scene to determine the speed and feed,Adjust at any timeNow let me tell you something about my operation. I do horizontal boring and millingGray iron, milling cutter, assuming 200--300, speed 100--200, the fastest 250 mm depth of 10 mm 1--2 feedDrilling, high-speed steel drill bit, 40 bit, speed 60--150 between 0.4--1 mm, as the size of the drill changes, the speed and feed will also change,End mills and keyway cutters, speed 60--80, feed 0.4--0.8Boring, boring. Assuming the diameter of 100 holes, boring bar 60 thick, length 200, speed 200--300, feed 0.26--0.63 precision boring: margin 0.8--1.2, speed 350--550., feed 0.1--0.17Reamer, cutting allowance 0.1, add oil, feed speed 15--30, 0.6--1.5 mmThe above is my experience, the premise is that you must sharpen the tool,I always feel like a clip on a knife, and I don't always have the tools to sharpen it by hand

Q:Hit a circle, beating is 2-3 wire, reaming 16 holes should be little problem. 20-30 spare margins are left, and the reamer is new. But why does this problem arise? Ask the teacher for help!!!

Your situation is generally high speed (this time our customers use our reamer also met), then you have allowance is big, then the machining center normal left margin on the line 0.15MM. Finally, this knife is also a bit of a problem, otherwise it won't be a new knife and there will be such a problem. Also ask, you this workpiece material is stainless steel?

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

I don't know if you screw precision processing, is the common thread that was not necessary, the direct use of the 6.5 bit can be, if you have high precision, with 6.3 bit, and then use the straight edge reamer 6.7.

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?.

The allowance is large. Use the 13.8 reamer to enlarge the table. Hit the blade to see if the blade is on the same heart. Measure both the front and back blades.

Q:What's the difference between a bore cutter and a reamer?

In fact, from the number of edge cutting is not what special distinction, and a single blade Boring Reamer and multi edge points. Mainly from the processing technology to distinguish the reamer just to get better precision holes, generally on the machine are low, processing is relatively simple, the position of the size precision boring not only can get a better hole hole can also be modified!!