With efficient Chan Ren deep Kong Zuan raises deep aperture to machine efficiency

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Long-term since, odd blade deep aperture is gotten (the gun is gotten) because tigidity is inferior,grind blemish with blade, make its machine efficiency to be restricted. The deep Kong Zuan of efficient Chan Ren of innovation can make machine efficiency to rise apparently. Make when what the deepness of aperture is bore diameter multiple when, need uses deep Kong Zuan to cut a method to undertake machining. 70 come for years, odd blade deep aperture is gotten (the gun is gotten) it is the commonly used cutting tool that machines bore diameter to be less than 40mm deep aperture. But in applying actually, the treatment efficiency that odd blade deep aperture gets is inferior, brought about twist drill of deep aperture of integral hard alloy to get rapid development thereby. The development of twist drill of deep aperture of integral hard alloy is cutting tool production precision rises and groove, the result that guides arris design is improved. But, twist drill of this kind of deep aperture can machine deepness only / the aperture with diametical relatively lesser comparing, to deeper aperture, still want to use odd blade deep aperture to get treatment. As deep as Chan Ren of integral hard alloy Kong Zuan is compared, symmetrical twist drill can use two blade to get much feed rate high, because this has this kinds of a lot of cutting tool to appear on the market, but the quality that its defect is aperture is poorer, can use at machining the use circumstance with not high demand only. As contrary as this, pass comparative experiment to be able to see, the good point that odd blade deep aperture plunges is bore quality taller, defect is the feed rate that can achieve lesser. When treatment moves qualitative steel, if raise feed, criterion cutting tool wears away increase, produce the bad figure that cut bits. Accordingly, machine effect to lead low, cutting tool life weak point is common Chan Ren the inferior position of deep Kong Zuan. Slight point pours a circle to as a result of,can prolong cutting tool life afore-mentioned reasons, made people arise to develop the idea that deep aperture of a kind of efficient Chan Ren gets. In reservation odd blade deep aperture gets the premise with bore high quality, through undertaking optimizing to cutting tool, raise its to machine efficiency, and do not lower cutting tool life. For this, the much research work that in Chan Ren to going deep Kong Zuan optimizes field place to do undertook retrospective. For example, to the treatment of stainless steel, want to take the design of cutting tool seriously particularly not only, and undertake study to the performance characteristics of different coating material and coating structure even, confirm with common share coating photograph is compared, the cutting tool of integral coating wears away smaller. Return some to study the job points out, below most circumstance, with the Chan Ren that uses sharp point deep Kong Zuan is compared, undertake to point slight pour a circle to be able to improve cutting tool life. In the research project that deep aperture gets the applied HP- Chan Ren that introduces in the article, introduced afore-mentioned optimizing achievement, undertook improvement further to cutting tool structure and base material. The cutting tool that the institute uses is versed in by Botek accurate Kong Jia technical company is made, model is Typ113-HP. In Duotemengde university cutting machined an institute to have a test to the performance characteristics of this innovation cutting tool. The experiment is used common not deep Kong Zuan of odd blade of coating whole hard alloy machines low sulfur to move qualitative steel to regard as more fiducial, will evaluate the performance that deep aperture of HP- Chan Ren gets. Experiment through cutting, the cutting tool that deep aperture of common odd blade of integral hard alloy gets wears away the state makes clear with the appearance that cut bits, in feed F=0.

Below the condition of 02mm, get the cutting tool when cutting length to achieve 30m to appear slight wear away, because heat in metal cutting of cutting tool susceptive and cutting force negative charge are small, because this only and slight crescent moon wears away depression,face of the knife after mixing wears away, what produce cutting bits is inclined helix coils cut bits, easy from the eduction in aperture. Through raising feed, getting after cutting length to achieve Lf=9m, the point of a knife of round place outside cutting tool already was shown more acuteness wear away, make the experiment must be interrupted accordingly. In addition, raise feed influential also to cutting bits figure. Coil in inclined helix cut bits to go up to still have a paragraph banding cut bits, and compressed banding cut bits paragraph can place between cutting tool and workpiece, cause cutting tool damaged. Use the effect actually from industry to look, common odd blade deep aperture gets OK and reliable ground to apply at deep Kong Jia to be versed in. But should improve treatment efficiency, should get the limitation of certain condition, especially if raise feed, criterion cutting tool can wear away too quickly. Accordingly, the first situation that studies deep aperture of HP- Chan Ren is gotten, it is to should be cleared up go up from cutting principle, with HP- Chan Ren deep aperture gets what whether can realize feed to rise. When the feed that when HP- Chan Ren deep aperture gets changes, can see, measured value rise and increase as feed, it is the sexual relationship that show a line almost. When feed F=0.

When 34mm, feed force Ff=950N, torque Mb=4.

3Nm; In F=0.

When 36mm, because cutting tool turns round load too big and produce damaged. Besides cutting power load, the appearance that cut bits cuts a process to have important sense to deep Kong Zuan. Deep aperture of use HP- Chan Ren is gotten, in feed F=0.

When 04mm, the inclined helix that formed appropriate length cuts bits, did not appear adverse banding cut bits paragraph. Raise F=0 when feed.

When 1mm, appeared individual cut bits to coil, this is to suit the type cutting bits from eduction of Kong Neishun free and appearance likewise. Raise feed F=0 further.

When 2mm, produced a large number of hot load apparently, the color that cut bits appeared to change apparently, appearance also becomes irregular. Should raise feed to F=0 further.

When 3mm, this kind of phenomenon becomes more outstanding, cut bits not only curly particularly close together, and appeared compressed cut bits, can see, this kind cuts bits very thick. According to afore-mentioned mechanical load and the test result of the appearance that cut bits, using HP- Chan Ren when deep Kong Zuan of deep Kong Zuan and fried dough twist undertakes cutting tool life test studies, adoption feed is F=0.

2mm. The size of mechanical load can be used at judging cutting tool to wear away state, as wear away the accretion of the value, the measured value of feed force and torque also increases subsequently. By book cutting tool life, feed can rise 10 times measure a result to show, in 30m auger cut length inside, no matter be deep Kong Zuan of fried dough twist, deep aperture of odd still blade is gotten, ff of its feed force did not rise apparently. Deep to HP- Chan Ren aperture gets this one result especially notable. Because common Chan Ren is deep,aperture is gotten in feed F=0.

When 02mm, also can achieve 30m auger cut length, raise feed, can bring about deep Kong Zuan of common Chan Ren to wear away accelerate, so that be in,achieve the test must be stopped before booking life index (the hole depth that achieved 9m only) . However, deep Kong Zuan of HP- odd blade used tower above here the feed of 10 times, namely F=0.

2mm, still reached booked life target. And, scanning report lens analyses a proof, cutting tool still is in wear away normally condition, still can continue to use. Deep aperture of fried dough twist gets the difference of structure of the cutting tool between as deep as Chan Ren Kong Zuanzhi, can get explanatory from inside the measured value of feed force. The feed force average that deep aperture of fried dough twist gets Ff ≈ 811N, and the 685N of ≈ of Ff of average feed force that deep aperture of HP- Chan Ren gets. Because,this is, deep aperture of fried dough twist gets semmetry two advocate there is a horizontal blade among cutting blade, because be in rate of cutting of horizontal blade area is low, produced attrition and extruding, bring about feed force to lift. Deep Kong Zuan of HP- odd blade does not have horizontal blade, feed force is relatively so lesser. Bore torque is worth data to make clear, of two kinds of cutting tool wear away lesser, all did not appear the circumstance with apparently elevatory torque. But the difference that two groups of data reflect a cutting tool structure to go up however. As a result of fried dough twist deep Kong Zuan is before horn, torque is so lesser, average torque is worth Mb ≈ 1.

9Nm. And deep Kong Zuan of HP- Chan Ren is Chan Ren structure, before ° of horny γ =0, because this is brought about apparent taller torque Mb ≈ 3.

0Nm. Wear away besides cutting tool outside, the quality of aperture also is the main index that describes deep Kong Zuan to cut function. Below similar feed requirement, the circularity error that deep aperture of HP- odd blade gets is more profound than common Chan Ren Kong Zuan is smaller. This may be the action since place of cutting tool coating, make cutting tool treatment gave stable round opening. Below comparable feed condition, the aperture circularity that deep aperture of use fried dough twist gets treatment to go out is opposite poorer. But all measured value all are in better level. To the prejudicial error of aperture, measured value showed the effect of cutting tool structure and feed. Deep to differring Chan Ren aperture is gotten, its measured value is in comparable level. Explain from this, the improvement that cutting tool blade grinds did not produce adverse effect to the prejudicial error of aperture. In addition, for deep to Chan Ren Kong Zuan, raise feed or the prejudicial error that increased opening. As feed rise, feed force and torque value increase, bring about radial component of force to increase thereby, make cutting tool produces deflection, increased the prejudicial error of aperture. Deep to two kinds of differring Chan Ren aperture is gotten, the length of aperture of prejudicial error edge is dispersive the gender is lesser. Notable is, the prejudicial error that deep aperture of HP- odd blade gets is in relative to higher level. To reduce prejudicial error, undertook improvement to cutting tool and treatment craft. Have a test to improving the cutting tool after, the result shows, prejudicial error is reduced somewhat. In addition, still reduced bore feed. The prejudicial error that measures below such feed makes clear, through undertaking improvement to cutting tool and treatment craft, make prejudicial error is reduced apparently. When deep aperture of applied HP- odd blade is gotten, to taller feed, make prejudicial error achieves similar rate likely also reduce, this is the characteristic that deep aperture of HP- Chan Ren gets. The research of deep to HP- Chan Ren Kong Zuan shows conclusion as a result, deep Kong Zuan of as deep as common Chan Ren Kong Zuan and fried dough twist is compared, drilling tool of deep aperture of HP- odd blade has very large latent capacity. Get at common Chan Ren deep aperture relatively, below the condition that comparatives in cutting tool life, it can improve productivity apparently. Below same use condition, the aperture quality that deep aperture of HP- odd blade gets as deep as common Chan Ren Kong Zuan to machine comparatives. Test result shows, with fried dough twist deep Kong Zuan is compared, the quality respect that deep aperture of HP- odd blade gets in life of productivity, cutting tool and aperture is in the level that comparatives roughly. Adopt technology of pair of cutting tool structures and treatment improve, the prejudicial error of aperture can reach very right level. Anyhow, it is fruitful that the improvement that pours round side in the structural design of cutting tool, coating and cutting point proves, the efficient treatment that because this can realize Chan Ren,deep aperture gets. CNC Milling CNC Machining