In cutting treatment finite yuan of imitate

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Have the aid of at finite yuan of analysis tool (FEM) flexibility can describe cutting process in the round; Check photograph comparing with the experiment, finite yuan of analysis is OK the treatment process that the description is measured hard or cannot describe originally better. Of cutting process build model and imitate crucial to reducing treatment man-hour and cost. Imitate can be used at quality management and quality to optimize as development tool, reduce production to start as far as possible the risk of level and trial-produce charge. Finite yuan of analysis (FEM) it is method of a kind of maths, apply to especially solve with the question with actual and pertinent project, can travel inside wider range. Will need computational area to differentiate above all for the small unit with a certain number of limited volume. Differ to seek a solution within the limited unit of 0 in each. Normally the circumstance leaves the solution of whole area by quite giant but the linear equational operation with exquisite, good stuff reachs. Use finite yuan of imitate is OK method of maths of have the aid of undertakes rebuilding to cutting process, the temperature that at the same time aleatoric place and time nod in will whole process, extend, extend rate, stress comes out with computation getting power. Accordingly, finite yuan of imitate is OK study with the experiment that will support different situation to fall (graph 1) . Graph in 1 cutting treatment finite yuan the analysis is in process of cutting tool development, the ingredient that such as cutting tool wears away and produces efficiency to wait will produce conclusive effect, because be in whole treatment process,manufacturing efficiency and quality are affected. Of cutting tool structure optimize the service life that can improve cutting tool itself and treatment quality. To acquire the structure of cutting tool geometry that optimizes quite, need considers the thermic load in cutting process and mechanical negative charge. Need to analyse edge edge and the stress that are located in cutting tool interior and temperature in addition. Internal stress of area of cutting blade contact, extend, the mechanism that extends the detailed information of rate and temperature to be able to be used at the analysis to cut bits to form. Workpiece respect, have the aid of is finite yuan of influence that the brim area place that the method can forecast fixed workpiece gets. The research that forms a mechanism to workpiece internal stress can use control cutting process to keep abreast of the character that one foot makes specific brim region. Graph the example of 2 is the course building a model that cuts type grinding squarely. The first pace, use finite yuan of software (used in this exemple " Deform 2D " ) differentiate cutting tool automatically according to the geometrical parameter that give out reseau. Workpiece differentiates additional attrib border requirement brings to bear on again after reseau. The flexibility according to workpiece - plasticity deformation computation chooses appropriate material model as a result. After the osculatory condition between affirmatory cube, can set the traversal speed of workpiece. Begin consideration next, the point of observation of different to be located in position undertakes evaluating. Graph 2 those who show is the evaluation result on direction of axis of the X in cutting process. Graph because the 2 dimension model that 2 right angle cut type grinding is finite yuan the analysis cannot reflect the condition in actual process completely, because this is being used finite yuan be necessary to undertake checking to the result when simulation software. Can discover the error between experiment and imitate when building a model. For example, when having cutting test to large work, finite yuan imitate can undertake an analysis to the one fraction inside whole range only. Uses data needs to use the material character with material model factual basis to undertake rebuilding. The conclusion data that uses a test can contrast cutting type, get power or internal stress. Finite yuan of analysis method is OK undertake evaluating from time and positional precision, be experimental method is effective patulous. Accordingly, pass finite Yuan Jianmo to be able to get additional information, chafe during cutting bits to form for instance and contact the circumstance of area. Finite yuan imitate can have complement to cutting experiment not just, still can expand its even wider range. Below the 2 dimension imitate that cuts type grinding course squarely exemple the 2 dimension in lifting right angle to cut type grinding course are finite yuan imitate undertakes explanatory. Simulative purpose is to get the size in horniness cutting process and dimension effect to answer the influence that cuts force of bits, cutting and internal stress. Finite Yuan Jianmo needs to use the data data that obtains through Poulachon software. Additional, finite comparative test data undertakes yuan of imitate examination. Nextpage pursues of the 3 100Cr6 stuff that showed treatment is sclerotic cut bits to fashion a process. Upper part is the source cutting bits that the method that part of have the aid of quickens finds the first, picture lower part is finite yuan of simulative result. Lower part is the cutting force that reachs imitate and experiment measures cutting power undertakes contrast. Left show when cutting ply R β and cutting blade pour round H equal the result at 120 micron. Show when cutting ply R β and cutting blade pour round H on the right side of equal the result at 8 micron. Graph the cutting ply of 3 different measurement and cutting blade pour what the circle falls to cut bits to form circumstance and circumstance getting power is become R β / H=0 of ply of the scale =1 of H, cutting.

12 millimeter or =0.

When 008 millimeter, can achieve the very good imitate result that gets power with the process about cutting bits to form. When the internal stress that analyses workpiece brim area, the flexibility of the material in needing to note cutting imitate procedure especially - plasticity is characteristic. Further imitate analysis is after the imitate that cuts type grinding course squarely. Bear of the machinery on purify workpiece and thermic load, the contact between cancel cutting tool and workpiece, make component refrigeration comes environmental temperature. After this, what withhold inside component is leftover stress and internal stress. What still need to assure experimental data and imitate result here is consistent. Use finite yuan of method is OK more thorough to machining the temperature in the process to produce mechanism to undertake analysis research, and experimental method cannot get these data. Graph the 4 temperature simulation that revealed use cutting tool to cut material of C45E of the cutting below parameter of type grinding craft in different right angle. Highest area gives temperature to pour a circle on same cutting area now generally speaking lesser (R β =0.

01 millimeter) , and cutting ply is bigger (H=0.

02 millimeter) place. Increase gradually as β of R of coefficient of proportionality, temperature is highest area will come from cutting face move the surface (graph 4, the graph reachs right figure in) . Graph the temperature circumstance that blade of 4 different cutting pours a circle to fall passes above the β of positional parameter R that these results can discover apogee of the temperature in the process is relevant. As R β - the accretion of H coefficient of proportionality, more quantity of heat will be passed to workpiece, and the quantity of heat that cuts bits to take away is fewer. Because the size of this cutting tool and form can are opposite,the circumstance brings to bear on influence, adjust then the thermic load that gets on cutting tool. In cutting tool place of development phase cutting tool suffers bear general to decorate the influence with very large generation to the geometry of cutting tool. Finite yuan of auxiliary tool that imitate can regard a kind of effective as, avoid to cost giant experiment to be able to get the case of thermic load and mechanical bear. Graph the bear position that place of the cutting tool below the 5 cases gnawing an edge that showed different in good car process figure accepts. Imitate result makes clear: The old young general that bites an edge affects the stability of cutting tool greatly, and the mechanical negative charge that the geometrical appearance of outside face can drop cutting tool to get. Graph the 3 dimension imitate of process of milling of Nextpage of imitate of bear of cutting tool of 5 horniness turning for have the aid of finite yuan imitate method rebuilds milling process, need builds the 3 dimension model of workpiece and cutting tool above all. Finite yuan of software is medium differentiate automatically reseau function makes the user can undertake differentiating according to special demand. Of milling process build a model to be able to use Deform 3D software to undertake. Graph on 6 indication fixed cutting tool, cutting tool and the part that workpiece contacts undertook more careful reseau differentiates. The model is built as rigid system in the cutting tool in this example. According to the rate that has defined and directional drive workpiece. The contact of workpiece and cutting tool undertook more careful reseau differentiates, such making that the slope of stress and temperature is more dispersive. This is the premise condition that describes cutting force and imitate cutting process better. Calculative result can show detail, use at evaluating output variable. Pursue 6 times the temperature after the graph showed cutting the 3rd times distributings. Graph the high speed milling that the simulator that the above paragraphs of 3 dimension imitate of 6 milling process introduces can use at aluminous simple stuff. Process parameter can be divided for cutting speed, feed and dimension of milling head geometry, the purpose is the cutting force inside area of analytic workpiece brim and stress. Graph 7 showed the process bears the relationship between force and feed. Can discover with the look getting power that gets through the experiment both result is more consistent quite. The change of the in sufferring force to check imitate cutting rate that also can get in experiment of have the aid of additionally and cutting angle. Graph the feed in 7 milling treatment is more thorough to sufferring the effect of force the place on put together of process of geographical solution cutting narrates: Have the aid of of investigation data specification is finite yuan the method can rebuild cutting process. Among them, 2 dimension imitate can be used at analysing right angle to cut type grinding course, and 3 dimension imitate can be used at analysing milling process. Consider to be compared with the experiment, imitate method can analyse thermic load of susceptive of cutting tool place and mechanical bear alone already, OK still analyse further from the angle of time, space. In still can analysing a test cannot the domain of dug, such as temperature distributings. First-rate output is data of test of have the aid of as a result will check imitate result, contrast for example the process suffers force to perhaps cut bits form. Use experimental result to also can check simulative result conversely. Imitate method is OK still and accurate the influence of the joint action that forecasts all sorts of negative charge on cutting cutting tool and workpiece, to cutting the process also will have a more thorough understanding. Current imitate job used coating cutting tool. Result of imitate of have the aid of can analyse the effect of workpiece parameter, such as heat conducts function and heat to conduct correlation coefficient. CNC Milling