Begin imitate to assist a test to improve short distance honing

  • Time:
  • Click:143
  • source:EAMOM CNC Machining
After be being handled via short distance honing, workpiece wearability increases, attrition and slip character get optimizing. To perfect this working procedure, should undertake detailed test and verify. Have the aid of is reasonable imitate model, can reduce test difficulty considerably. Short distance honing also weighs small processing, it is the last segment that machines a process, also be microcosmic geometry depends on a method with what macroscopical geometry is able to improve. After the surface passes treatment, expression is wear away character is relatively inferior, attrition and slip character get promotion, noise decreases, fatigue resistance increases [1, 2] . However, working procedure development is it is with detailed test and verify additional [3] , the purpose depends on accumulating the treatment knowledge that place of new-style treatment stuff requires. Research emphasizes particularly on grinding working procedure establishs modular procedure at present, grinding working procedure builds modular process to drawing more and more attention, have the aid of emulates a model to be able to reduce number of test and verify. Grinding working procedure is special difficult problem (if grind bead to appear at the same time in great quantities,inhomogenous depth is permeated) , already made the one big challenge in establishing model and imitate procedure. Study association as Germany (DFG) the cutting craft institute of assistance (ISF) the component that studies a project, each working procedure all will undertake short distance and long distance honing experimental test and imitating test (the article basically is aimed at short distance honing) . Experimental purpose is to build sex of a case of a physically strong patient running a high fever or suffering from such disorders as stasis of blood to replace a model, make craft parameter consequence incorporate, use earning knowledge Yu Jianmo process. Adopt good experimental statistic plan, can make an effective test form. Sex of a case of a physically strong patient running a high fever or suffering from such disorders as stasis of blood replaces a model in, between the target cost such as the speed of long, processing and processing strength initiative value when processing and coarse parameter or appearance error value, the function with particular existence concerns. Look from imitate angle, through cutting tool and workpiece actual surface digitlizes income measure data, usable Yu Dao provides the process building a model with workpiece. In addition, the optics such as white smooth microscopy measures working procedure to also get adoption. As among them model of working procedure of a physics, during athletic imitate inside income measure data also is on craft parameter foundation, all previous classics is worn disperse mixes. After working procedure builds a model to end, answer to carry out experimental test further, with test and verify this model. The exterior structure that experimental result and imitate build, make us right this working procedure had more extensive understand roughly. And process of working procedure imitate, can help the result after we forecast processing, ensure then the rationality that chooses craft parameter. The honing of method method short distance of honing of side overweight short distance is surface of the function below puissant action special processing working procedure [1-4] . After dividing exterior outline peak through moving, can form outline of downy type surface, produce openly effect to functional behavior thereby. During grinding working procedure as a result of the top gem, among them campaign of a treatment is easy produce oscillatory phenomenon, this makes crisscross of honing groove freely, this grinds working procedure for the top gem one big characteristic. During short distance moves, optional fine holystone or the finishing that deserve to have pressure unit take cutting tool [4] . As brand-new did not wear away cutting grain is entered ceaselessly through finishing belt makings, can achieve constant cutting performance. In outer round grinding, a mark that finishing belt passes Vulcolan and roller of a pressure are pressed on gyral workpiece (graph 1) . And during axial short distance, cutting tool can produce high frequency vibration. If observes trace of cutting grain score, can discover antrum record figure [4] . What with other majority grinding process differs is, workpiece and cutting tool are both and ceaseless mutual contact. And the large rod that papermaking course of study uses, often produce feed motion, ensure whole face all can handle work. Test facilities of automatic lathe of graph 1 MAG Boehringer is formed by the small processing fittings that provides alumina arenaceous area. This device is used compress air and pressure roller, outfit build the initiative cost that replaces model place to need to include F of circumferential speed Vu, thrust at active position office (or constant pressure P) , impaction time T, finishing takes feed rate Vb to wait for variable parameter. Oscillatory frequency F (or oscillatory speed Vosz) , journey extent LHub, value of hardness of roller of compensator or trimmer pressure, finishing takes norms and workpiece to belong to constant parameter, when building a model, should give consideration. Because the process builds model or process imitate,be one kind deepens working procedure knowledge, ceaseless promotion to optimize the superexcellent method of the process, accordingly its importance also causes people to pay close attention to with each passing day [5] . Meanwhile, what grinding simulative research and development also got the computer is increasingly powerful and auxiliary. In athletic imitate respect, cutting tool and job digital figure is consulting craft parameter, with form of disperse opposite motion mutual confluence. Use white smooth microscopy to realize workpiece surface to digitlize this kind to mix and permeate each other form three-dimensional overlay, make work thereby brand-new form appearance feature and geometrical parameter. The simulation of ISF milling working procedure that ISF of have the aid of develops machines software, can realize imitate of material purify motion [6] . Be aimed at this circumstance, workpiece and cutting tool dimension should consult optics measures income data. Microscopy of white light of have the aid of, what workpiece surface digitlizes is effective and usable measure a method emerge as the times require (steel of 100Cr6 scroll bearing) . Same, also can use white smooth microscopy to measure finishing to take. Graph 2 take to what use finishing among them one part. Reflex type electron micrograph through be opposite piece (REM) after with Baiguang the picture undertakes qualitative contrast, discovery is both almost consistent. Be aimed at exterior digitlization, every kinds of circumstance chooses a typical place each, guide next in imitate environment. Later, duplicate for many times this model place, so that complete the process building a model of cutting tool and workpiece, belt of along with finishing and workpiece are sectional inside imitate environment detailed sees a picture 3. Graph 2 finishing take electronic grating to pursue (left) with Baiguang amount of the face below microscopy pursues comparative graph Nextpage pursues 3 Zun Tu is finishing to take cutting tool model to pursue, right graph is cutting tool - work if the opposite motion picture of an interact wants to ensure afore-mentioned working procedure achieve good simulation result, depend on the building of influential to producing a result relevant machine modular process. Why to no matter be forecasted,plant parameter result, all need to build distinct or inspire model of action of coital each other. As to present result of short distance honing, answer to pay close attention to the job building a model of exterior structure achievement especially, so that pass imitate effect,reach peculiar surface roughness. Wait to already raised strong demand to time-interval of imitate of purify of workpiece model precision, material. Before long, large size model can be generated, store carry in computer, hold by computer accuse. In addition, present relatively successive movement to ensure, the process of single material purify that need has is as high as 1mln according to working procedure [7] . Effect of imitate of short distance honing presents a plan 4 pursue for effect of exterior structure imitate and practical effect contrast. Notable is, during process imitate, already realized method pilot transverse feed. During honing working procedure, two kinds all can discover grain of individual and outstanding cutting formed deeper groove apparently; And forming is area of place of downy type surface. Apparently apparent groove makes clear imitate several foothold are very outstanding. Because grain of extremely outstanding cutting compares passivation of a bit outstanding grain,get faster, accordingly, during imitate process, must use wear away model, afore-mentioned data nod quickly reset. Build extremely outstanding wear away with a bit outstanding grain the model is the one big challenge that material purify builds a model to work. Study association to Germany (DFG) support of offerred financing of project of DFG of BI 498/40-1 date, the author expresses to be thanked heartily. Graph structure of experimental earnings face is comparative during 4 imitate result and short distance honing the graph pursues 5 because grinding is mixed,the finish machining working procedure such as honing can promote workpiece surface mechanical property considerably, accordingly the value of working procedure of this kind of finish machining increases increasingly. Institute of craft of cutting of university of technology of much especially unconscious heart (ISF) invitation letter MetaV 2014 cheats heart grinding seminar the 5th times especially more -- for the dialog unripe classics VDW is advocated, current seminar will in March 2014 13 ～ are in 14 days Sseldorf holds D ü . On the meeting, many personage that comes from industry and research domain will spread out high administrative levels to speak. To modern production craft reachs his firm tone requirement, the razor blade with use geometry uncertain parameter undertakes cutting already made attention core. And for quite a long time, grinding working procedure is identified again is by no means finish machining exercise just; Contrary, more and more a kind of when be considered as to be aimed at other and numerous applying efficient, interesting solution. Additional, after working procedure classics is optimized, can extend working procedure suitable scope considerably. Numerous research organization and industry business also made massive effort, the purpose is machining working procedure of cutting tool of craft, treatment, treatment at imparting, and with the square field surface related grinding working procedure depth understands. In addition, the relevant content that thinks about current trend and reality also abounded this project connotation. CNC Milling CNC Machining