外文翻譯----機(jī)械加工表面質(zhì)量-其他專業(yè)-文庫吧資料
2025-01-27 09:11本頁面
【正文】 let up to pare to transform and repress the knife lump, scale to stab born, also is let up a value of valid measure. 2. The property of a material of work While processing the material of mold , have from the knife to produced the mold to transform to the squeeze of metals, the knife that add has to force to slice the tear to pieces of scraps and the work piece separate function, making a value of surface material of work tenacity is more good, the mold of the metals transform more big, process the surface more rough. While processing the brittleness material, it slices the scraps to present the broken pieces form, because of slicing the scraps to collapse ground but at process the surface to leave many points to order, make surface rough. 3. Slice to pare the dosage (B)Whet to pare to process to affect the surface factor of the rough degree Just be like to slice to pare to process the surface formation process of the rough degree, formation that whets to pare to process the rough degree of surface also hour from several why plain transform with the mold of the surface metals to decide of. The influence whets to pare the rough main factor of surface to have: The degree of hardness, emery wheel of a degree, emery wheel of the emery wheel fix whole, whet to pare the speed and whet to pare the path to enter to whet number of times, the work a circumference for quantity and light to enter to the speed and stalks to enter to the quantity and cool off the lubrication liquid. C. affect the factor of process the surface layer physics machine function In slice pare process, the work piece because of being subjected to slice to pare the dint and slice the function of pare the heat, make the physics machine the function creation of the surface layer metals change, the variety of the most is variety and Residual stress s that the variety, gold that the surface layer metals shows minute details the degree of hardness anizes mutually should the creation of the whetting to pare to process the mold produce transforms and slices to pare the hot ratio knife blade to slice to pare serious, as a result whet to pare to process to process behind the surface layer variety of abovementioned three physicses machine function and would be very big. (A)The surface layer is cold to make the hardening 1. Cold make to harden and it assesses the parameter The machine processes the process in because of slicing to pare the output mold of the dint function to transform, make the Crystal grain space distort, mutation, a creation shears to slice to slip to move, grain of Crystal grain drive make longer to turn with fiber, even broken up, these would make the surface layer metals of degree of hardnesses and strength raise, this kind of phenomenon be called cold make the hardening.( or be called to enhance)The result that the surface layer metals enhance, will enlarge the resistance that metals transform, let up the mold of the metals, the physical property of the metals also will take place the variety. Drive cold make the unsteady appearance that the metals of the hardening is placed in the high ability, only have a probably, the unsteady appearance of the metals will convert toward more stable appearance, this kind of phenomenon is called to size that weakens the function is decided by the temperature high and low, the temperature keeps on the length of time and enhances the size of the the metals is in the function that the machine processes to be subjected to the dint and heat at the same time in the process, therefore, processing after the surface layer end property of the metals is decided by to enhance and weaken the prehensive function of result. Assess cold make the hardening of index sign have three, namely the show minute details of the surface layer metals degree of hardness HV, harden the layer depth h and harden the degree N. 2. Affect co
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