外文翻譯----機(jī)械加工表面質(zhì)量-其他專業(yè)-文庫(kù)吧
2024-12-30 09:11 本頁(yè)面
【正文】 ld the dint can keep tired crack from expand, defer tired breakage of creation. Surface the cold and hard general panion contain remaining of should the creation of the dint, can keep the crack creation from bine the arrestment already has the crack to expand, to raise the tired strength beneficial. (C) the surface quantity to bear the eclipse influence The spare parts bears the eclipse to be decided by the rough degree of surface to a large value of surface is more big, accumulating the causticity material in the then cave valley more anti eclipse is more bad. Remaining of the surface layer pull should the dint will produce should the dint decay to open the rift , lower the spare parts to bear to whet sex, but Residual stress press should the dint then can prevent176。from should dint decay open the rift . (D)The surface quantity to match with the influence of the quantity A size for be worth of surface will affect the match quantity of the match with for the cleft, a value conference make wear away the enlargement, the cleft enlarge, the match property that break the lead the over match, assemble process in a the convex peak of part of surfaces is push even, actual lead the amount of over let up, lowering the match the conjunction strength of the a. B. the influence surface factor of the rough degree ( A)Slice to pare to process to affect the surface factor of the rough degree 1. The knife has several shapes to reply to reflect The knife have opposite make in to give exercise in the work piece, at processed the surface to leave to slice to pare the layer to remain the area, its shape hour the knife has several the shape replies to up in to be partial to Cape for quantity, lord, vice be partial to the Cape and enlarge the point of a knife arc radius, all can let up the height of remain the area. In addition, the mold that the ex Cape that appropriate aggrandizement knife have slices by let up to pare transforms the degree, the reasonable choice lubricate the liquid and the exaltation knifes to have the mold that the blade whets the quantity to slice by 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 va
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