CN102320023A - High-speed tool constraint abrasive material piece surface controllable accurate polishing processing technology - Google Patents
High-speed tool constraint abrasive material piece surface controllable accurate polishing processing technology Download PDFInfo
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- CN102320023A CN102320023A CN201110309890A CN201110309890A CN102320023A CN 102320023 A CN102320023 A CN 102320023A CN 201110309890 A CN201110309890 A CN 201110309890A CN 201110309890 A CN201110309890 A CN 201110309890A CN 102320023 A CN102320023 A CN 102320023A
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Abstract
The present invention relates to the field of material surface machining; Especially a kind of high-speed tool constraint abrasive material piece surface controllable accurate polishing processing technology; Its manufacturing procedure is: (1) part is carried out preprocessing at the machine tooling center and carving mills processing, will change the hard alloy bar of equivalent diameter again to the cutter that part is processed into; (2) hard alloy bar is fixed in the machine tooling in the heart, and makes the parallel placement with piece surface of hard alloy bar, make between hard alloy bar and the piece surface and leave the gap, starter motor rotates hard alloy bar at a high speed; (3) pour the abrasive material mixed liquor into, part and hard alloy bar are immersed in the abrasive material mixed liquor, the abrasive material mixed liquor carries out little removal processing through the high speed rotation of hard alloy bar to piece surface.The present invention has not only eliminated the piece surface defect layer, removes the plastic deformation of part to be processed surface transition, and the roughness of piece surface is met the requirements.
Description
Technical field
The present invention relates to the field of material surface machining, especially a kind of high-speed tool constraint abrasive material piece surface controllable accurate polishing processing technology.
Background technology
The machining accuracy and the surface quality of complicated shapes such as engine blade, impeller and mould, constitutional detail have very big influence to its service behaviour.
At present; The extensive use of numerical control machine tool and machining center makes the size and dimension precision of above-mentioned part to be guaranteed; On the other hand; Inevitably can there be cutter trade after the cut, need takes measures to reduce to improve surface quality until eliminating these cutter trades at piece surface.
Traditional material surface polishing processing method has: (1), manual grinding, and this method is not only consuming time but also require great effort, and is difficult to fundamentally improve the quality of product; (2), the vibration finishing method, this method is compared with manual grinding, its advantage is that efficient is high, but shortcoming is a poor controllability, when grinding off cutter trade, the processing surface that should not process causes product quality to be affected possibly.
Summary of the invention
The technical problem that the present invention will solve is: overcome the deficiency in the prior art, a kind of high-speed tool constraint abrasive material piece surface controllable accurate polishing processing technology of utilizing high speed gang tool and high-speed cutter constraint abrasive material piece surface controllably to be carried out precise finishing processing is provided.
The technical solution adopted for the present invention to solve the technical problems is: a kind of high-speed tool constraint abrasive material piece surface controllable accurate polishing processing technology, and its manufacturing procedure is:
(1), part is carried out preprocessing at the machine tooling center and carving mills processing, will change the hard alloy bar of equivalent diameter again to the cutter that part is processed into;
(2), hard alloy bar is fixed in the machine tooling in the heart, and make the parallel placement with piece surface of hard alloy bar, make between hard alloy bar and the piece surface and leave the gap, starter motor rotates hard alloy bar at a high speed;
(3), pour the abrasive material mixed liquor into, part and hard alloy bar are immersed in the abrasive material mixed liquor, the abrasive material mixed liquor carries out little removal processing through the high speed rotation of hard alloy bar to piece surface.
Described abrasive material mixed liquor is antiscuffing paste and oily mixed liquor.
The invention has the beneficial effects as follows: the present invention has not only eliminated the piece surface defect layer; Remove the plastic deformation of part to be processed surface transition; The roughness of piece surface is met the requirements; And hard alloy bar can be used on the various lathes, and its diameter can change as required, and usage range is wider.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is further specified.
Fig. 1 is a schematic diagram of the present invention.
Among the figure: 1. part, 2. hard alloy bar, 3. abrasive material mixed liquor.
The specific embodiment
Combine accompanying drawing and preferred embodiment that the present invention is further described now.These accompanying drawings are the sketch map of simplification, basic structure of the present invention only is described in a schematic way, so it only show the formation relevant with the present invention.
High-speed tool constraint abrasive material piece surface controllable accurate polishing processing technology as shown in Figure 1, its manufacturing procedure is:
(1), part is carried out preprocessing at the machine tooling center and carving mills processing, will change the hard alloy bar of equivalent diameter again to the cutter that part is processed into;
(2), hard alloy bar is fixed in the machine tooling in the heart, and make the parallel placement with piece surface of hard alloy bar, make between hard alloy bar and the piece surface and leave the gap, starter motor rotates hard alloy bar at a high speed;
(3), pour the abrasive material mixed liquor into, part and hard alloy bar are immersed in the abrasive material mixed liquor, the abrasive material mixed liquor carries out little removal processing through the high speed rotation of hard alloy bar to piece surface.
When changing cutter, need part not lifted down, only need cutter is taken down, it is just passable, convenient and swift that hard alloy bar is installed, and improved production efficiency.
Hard alloy bar can be used on the various lathes, and like milling machine, grinding machine, the diameter of hard alloy bar can be adjusted according to the size of actual part or the effect that reaches as required, and usage range is wide.
The abrasive material mixed liquor is the mixed liquor of antiscuffing paste and oil or water, and antiscuffing paste has adopted Shanghai to dodge prosperous special grinding and polishing cream.
High-speed cutter constraint abrasive material controllable accurate polishing processing method utilizes the hydrldynamic pressure lubrication effect exactly; Producing high pressure and draw power at a high speed rotatably between instrument and the part; Force be blended in the cutting fluid abrasive particle impact at a relatively high speed, the micro-bulge of grinding piece surface; Be cutter trade, thereby improve a kind of combined precision polishing processing method of surface quality of workpieces.
This process is after the preprocessing of being accomplished part by numerical control machine tool and carving mill processing; Utilize the cylindrical hard alloy bar suitable to rotate at a high speed with finish-milling cutter diameter; Hard alloy bar and piece surface are quite approaching, and the gap is very little, make fluid therebetween produce dynamic pressure; Compressing abrasive particle in the cutting fluid of this crush zone carries out little grinding to piece surface; According to the numerical control program of setting, hard alloy bar just can controllably carry out polishing processing to piece surface by the certain speed rotation with along certain orbiting motion.
When between instrument and part, having certain clearance, because the viscous effect of abrasive material mixed liquor, instrument will drive the gap of abrasive particle through instrument and piece surface rotatably at a high speed; And there are a large amount of high speed abrasive particles constantly to bombard piece surface; According to the grinding principle, these high speed abrasive particles will be slided the grinding process of wiping-cultivated plough-cutting on the part processing surface, certainly because the difference of abrasive particle shape; Some abrasive particle plays cutting; Also some abrasive particle only plays the delineation effect, even some abrasive particle is and the sliding wiping of piece surface generation to play the friction polishing and process; On microcosmic, the peak of the micro-bulge of piece surface part is under the cultivated plough effect of high speed abrasive particle, and crystal grain produces dislocation; A large amount of gatherings of dislocation will produce the micropore, and these holes produce the crackle that parallels with working face gradually under the effect of continuous bombardment power; When crackle reaches capacity length; The peak part of micro-bulge just peels off with thin flap, forms abrasive particle, also makes the height of micro-bulge descend simultaneously; Below the peak of micro-bulge part because volume is greater than the peak part of micro-bulge, the cultivated plough effect of abrasive particle with deficiency so that its generation abrasive particle; But constantly bombard power; To make it produce plastic deformation, according to dislocatioln theory, the crystal grain here will be more tight; And there is part crystal grain to be extruded into the recess on micro-bulge next door; Play the effect of " filling and leading up " groove, so just can reach the effect that reduces surface roughness preferably, the principle that Here it is rotates the abrasive particle injection piece surface of hard alloy bar drive at a high speed.
Because lathe drives the high speed rotation of hard alloy bar; When abrasive injects the wedge gap between hard alloy bar and the part; Just formed the phenomenon of hydrodynamic oil film wedge, produced hydrodynamic pressure, abrasive obtains energy down by means of the rotation of hard alloy bar and the effect of centrifugal force, Fluid Pressure Field and velocity field; Under the boundary constraint effect of hard alloy bar, near hard alloy bar/part contact zone, accomplish little removal processing to part.
Embodiment 1: the influence of the parameter of abrasive particle model
Abrasive material mixed liquor: choose three kinds of antiscuffing paste 80#+ oil, antiscuffing paste 240#+ oil and antiscuffing paste 320#+ oil;
Duty: part and cutter sink are in the mixture of grinding and polishing cream and oil;
Work materials: Q345;
Cutter: Φ 6 hard alloy bars;
Tool path pattern: orthoscopic;
Feed: 600 (mm/min);
The speed of mainshaft: 19200 (r/min);
The gap of part and cutter: 0.05 (mm);
See from experimental data, choose antiscuffing paste 80#+ oil, it is coarse that the piece surface after the polishing processing shows slightly; See that from experimental data choose antiscuffing paste 240#+ oil, the piece surface after the polishing processing is more level and smooth, effect is better; See from experimental data, choose antiscuffing paste 320#+ oil, the piece surface after the polishing processing has the slight line of drawing.
Reach a conclusion from above-mentioned three embodiment, free abrasive is bigger to the surface influence of part, and the abrasive particle that this experiment is adopted is all thicker; But the improvement of piece surface is more remarkable, when abrasive particle under enough big dynamic pressure effect during the polishing the treatment of surfaces of components, if the granularity of abrasive particle is bigger; Under the effect of external force and surface abrasion, according to the principle analysis of wearing and tearing, big abrasive particle will cause the smear metal of big volume to come off; So the polishing in reality adds man-hour, note choosing suitable abrasive particle.
Embodiment 2: the influence of constraint abrasive particle polishing processing feed parameter
Abrasive material mixed liquor: antiscuffing paste 80#+ oil;
Duty: part and cutter sink are in the mixture of grinding and polishing cream and oil;
Work materials: Q345;
Cutter: Φ 6 hard alloy bars;
Tool path pattern: orthoscopic;
The experiment quantitative parameter:
The speed of mainshaft: the gap of 19200 (r/min), part and cutter: 0.05 (mm);
The experimental variable parameter:
Feed: choose 50mm/min, 100mm/min, 400mm/min, 600mm/min, 1000mm/min;
See from experimental data: feed is 50mm/min, and piece surface has shadow scratch; Feed is 100mm/min, and piece surface has shadow scratch; Feed is 400mm/min, and piece surface has cut, shows coarse slightly; Feed is 600mm/min, and piece surface has cut, shows coarse slightly; Feed is 1000mm/min, and piece surface has pit, slightly is inferior to the effect that feed is 600mm/min.
Can find out that from experimental data feed is not obvious to the whole polishing influential effect variation of part, but shows certain rules, promptly along with the increase of feed, the polishing effect worse and worse.
Embodiment 3: the influence of the parameter of spacing between part and the hard alloy bar
Abrasive material mixed liquor: antiscuffing paste 80#+ oil;
Duty: part and cutter sink are in the mixture of grinding and polishing cream and oil;
Work materials: Q345;
Cutter: Φ 6 hard alloy bars;
Tool path pattern: orthoscopic;
The experiment quantitative parameter:
The speed of mainshaft: 19200 (r/min), feed: 600mm/min;
The experimental variable parameter:
Spacing between part and the hard alloy bar: choose 0.05mm, 0.1mm, 0.15mm, greater than 2mm;
See from experimental data: spacing is 0.05mm, and piece surface has the polishing cutter trade; Spacing is 0.1mm, and piece surface has little cut; Spacing is 0.15mm, and piece surface has cut, is inferior to the effect that spacing is 0.1mm; Spacing is that piece surface has cut greater than 2mm, is inferior to the effect that spacing is 0.1mm.
From experimental data, along with the increase of part and alloy bar spacing, the polishing processing effect has the sign of variation, after spacing is greater than 0.2mm; The polishing processing effect dies down, and thick cutting striped appears in piece surface, and abrasive particle obviously disappears to the cutter trade on surface; Infer in view of the above, in polishing processing, must keep the certain clearance amount; If too near, certainly will cause the wearing and tearing between abrasive particle, part and the hard alloy bar to produce, cause the surface breakdown of part; If the distance is too far, certainly will cause fluid pressure not enough, and abrasive particle can't reach the energy of polishing processing, can not carry out effective polishing processing.
The foregoing description only is explanation technical conceive of the present invention and characteristics; Its purpose is to let the personage that is familiar with this technology can understand content of the present invention and implements; Can not limit protection scope of the present invention with this; All equivalences that spirit is done according to the present invention change or modify, and all should be encompassed in protection scope of the present invention.
Claims (2)
1. a high-speed tool retrains abrasive material piece surface controllable accurate polishing processing technology, and its manufacturing procedure is:
(1), part is carried out preprocessing at the machine tooling center and carving mills processing, will change the hard alloy bar of equivalent diameter again to the cutter that part is processed into;
(2), hard alloy bar is fixed in the machine tooling in the heart, and make the parallel placement with piece surface of hard alloy bar, make between hard alloy bar and the piece surface and leave the gap, starter motor rotates hard alloy bar at a high speed;
(3), pour the abrasive material mixed liquor into, part and hard alloy bar are immersed in the abrasive material mixed liquor, the abrasive material mixed liquor carries out little removal processing through the high speed rotation of hard alloy bar to piece surface.
2. high-speed tool constraint abrasive material piece surface controllable accurate polishing processing technology according to claim 1, it is characterized in that: described abrasive material mixed liquor is antiscuffing paste and oily mixed liquor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201110309890.0A CN102320023B (en) | 2011-10-13 | 2011-10-13 | Controllable precision finishing process for surface of high-speed tool constraint abrasive part |
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| CN201110309890.0A CN102320023B (en) | 2011-10-13 | 2011-10-13 | Controllable precision finishing process for surface of high-speed tool constraint abrasive part |
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| CN102320023A true CN102320023A (en) | 2012-01-18 |
| CN102320023B CN102320023B (en) | 2015-05-06 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107756252A (en) * | 2017-10-18 | 2018-03-06 | 郑州磨料磨具磨削研究所有限公司 | A kind of grinding wheel dressing method and device based on hydrodynamic driving |
| CN108214294A (en) * | 2017-12-06 | 2018-06-29 | 浙江工业大学 | A kind of pressure burnishing device that linearly surges |
| CN109773604A (en) * | 2018-12-26 | 2019-05-21 | 河海大学常州校区 | A kind of automatic controllable device and method of removal intersection hole bur |
| CN110067017A (en) * | 2019-04-19 | 2019-07-30 | 大连理工大学 | Using the preprocess method of the electrochemical mechanical polishing workpiece of orientation crystal grain control |
| CN113084693A (en) * | 2021-04-08 | 2021-07-09 | 山东大学 | Micro-stress abrasive fluid grinding and polishing method for thin-wall micro-pores |
| CN113103070A (en) * | 2021-03-05 | 2021-07-13 | 华南理工大学 | Method for machining microgrooves by shearing, thickening and abrasive flow combined grinding |
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| JPS6119558A (en) * | 1984-07-03 | 1986-01-28 | Nec Corp | Mirror polishing method |
| JPH10100063A (en) * | 1996-09-26 | 1998-04-21 | Nippon Telegr & Teleph Corp <Ntt> | Polishing device |
| JP2005103669A (en) * | 2003-09-29 | 2005-04-21 | Nachi Fujikoshi Corp | Recessed end surface machining method and device |
| JP2005103668A (en) * | 2003-09-29 | 2005-04-21 | Nachi Fujikoshi Corp | Free-form surface machining method and device |
| CN201239917Y (en) * | 2008-05-30 | 2009-05-20 | 青岛理工大学 | Polishing device of grinding machine |
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2011
- 2011-10-13 CN CN201110309890.0A patent/CN102320023B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6119558A (en) * | 1984-07-03 | 1986-01-28 | Nec Corp | Mirror polishing method |
| JPH10100063A (en) * | 1996-09-26 | 1998-04-21 | Nippon Telegr & Teleph Corp <Ntt> | Polishing device |
| JP2005103669A (en) * | 2003-09-29 | 2005-04-21 | Nachi Fujikoshi Corp | Recessed end surface machining method and device |
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| CN201239917Y (en) * | 2008-05-30 | 2009-05-20 | 青岛理工大学 | Polishing device of grinding machine |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107756252A (en) * | 2017-10-18 | 2018-03-06 | 郑州磨料磨具磨削研究所有限公司 | A kind of grinding wheel dressing method and device based on hydrodynamic driving |
| CN107756252B (en) * | 2017-10-18 | 2019-12-20 | 郑州磨料磨具磨削研究所有限公司 | Grinding wheel dressing method and device based on fluid dynamic pressure driving |
| CN108214294A (en) * | 2017-12-06 | 2018-06-29 | 浙江工业大学 | A kind of pressure burnishing device that linearly surges |
| CN108214294B (en) * | 2017-12-06 | 2023-08-01 | 浙江工业大学 | Linear hydrodynamic polishing device |
| CN109773604A (en) * | 2018-12-26 | 2019-05-21 | 河海大学常州校区 | A kind of automatic controllable device and method of removal intersection hole bur |
| CN110067017A (en) * | 2019-04-19 | 2019-07-30 | 大连理工大学 | Using the preprocess method of the electrochemical mechanical polishing workpiece of orientation crystal grain control |
| CN113103070A (en) * | 2021-03-05 | 2021-07-13 | 华南理工大学 | Method for machining microgrooves by shearing, thickening and abrasive flow combined grinding |
| CN113084693A (en) * | 2021-04-08 | 2021-07-09 | 山东大学 | Micro-stress abrasive fluid grinding and polishing method for thin-wall micro-pores |
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| CN102320023B (en) | 2015-05-06 |
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