模具專業(yè)外文文獻(xiàn)翻譯

1、模具專業(yè)文獻(xiàn)翻譯外文原文:modern fast economy manufacture mold technology1 introductionalong with the global economy development, the new technological revolution made the new progress and the breakthrough unceasingly, the technical leap development already becomes the important attribute which the impetus world

2、 economics grew. the market economy unceasing development, urges the industry product more and more to the multi- varieties, high grade, the low cost direction to develop, in order to maintain and strengthens the product in market competitive power, product development cycle, production cycle more a

3、nd more short, thereupon to makes each kind of product the essential craft equipment mold request to be more and more harsh.on the one hand the enterprise for the pursue scale benefit, causes the mold to turn towards high speed, is precise, the long life direction develops; on the other hand enterpr

4、ise in order to satisfy the multi- varieties, the product renewal quickly, wins the market the need, requests the mold to turn towards the manufacture cycle to be short, the cost low fast economy direction develops. the computer, the laser, electronic, the new material, the new technical development

5、, causes the fast economical pattern making technology even more powerful, the application scope expands unceasingly, the type increases unceasingly, the creation economic efficiency and the social efficiency are more and more remarkable.2 fast economical pattern makings technologies typethe fast ec

6、onomical pattern making technology and the traditional machine-finishing compares, has the pattern making cycle short, the cost is low, the precision and the life can satisfy in the production the operation requirements, is synthesizes an economic efficiency quite remarkable kind to make the mold th

7、e technology, summarizes below, has several types to leave.2.1 fast prototypes manufactures technologythe fast prototype manufacture technology is called rpm, is one kind of new manufacture technology which the 80 later period develops. us, japan, england, israel, germany, china have all promoted ow

8、n commercialization product, and has formed the new industry gradually.rpm is the computer, the laser, the optical scanning, the advanced new material, the computer-aided design (cad), the computer assistance processing (cam), the numerical control (cnc) synthesizes the application the high technolo

9、gy and new technology. in takes shape in the concept take the plane separate, piles up as the instruction, in the control take the computer and the numerical control as the foundation, take biggest flexibility as general goals. it has abandoned the traditional machine-finishing method, to the manufa

10、cturing industry transformation is a significant breakthrough, uses the rpm technology to be possible directly or indirectly the fast pattern making, this technology already by profession widespread application and so on automobile, aviation, electrical appliances, ships, medical service, mold. unde

11、r summarized already commercializationseveral kind of models fast to take shape at present the craft.2.1.1 lasers three-dimensional photoetching technology (sla)the sla technology hands over the computer cad modelling system to obtain the product the three-dimensional model, through the microcompute

12、r control laser, according to the determination path, is carrying on to the liquid state photosensitive resin by the level scanning, causes layer upon layer to solidify by the scanned sector, is united as one body, forms the final three dimensional entity, after again passes through the related fina

13、lly hardening to polish and so on place the quantity, forms the workpiece or the mold.the laser three-dimensional photoetching technology main characteristic is may take shape wilfully the complex shape, takes shape the precision high, simulation strong, material use factor high, performance reliabl

14、e, the performance price quite is high. suits the product outlook to appraise, the function experiment, fast makes the electrode and each kind of fast economical mold. but this technology uses equipment and photosensitive resin price expensive, causes its cost to be high.2.1.2 pack of levels outline

15、s manufacture technology (lom)the lom technology is through the computer three-dimensional model, the use laser selectively to its lamination slice, will obtain each section outline layer upon layer will cake, finally will fold the addition three dimensional entity product.its craft characteristic i

16、s takes shape the speed quickly, takes shape the material small advantage, the cost lowly, because does not have changes, therefore does not have the thermal load, the contraction, the inflation, the warp and so on, therefore the shape is stable with an inch precision, after but takes shape the wast

17、e material block to strip takes time, specially the duplicate miscellaneous items interior waste material strips. this craft is suitable for the aviation, the automobile and so on and center the volume big workpiece manufacture 2.1.3 lasers powder electoral district agglutinates takes shape the tech

18、nology (sls)the sls technology is the computer three-dimensional model through the lamination software its lamination, under the computer control, causes the laser beam basis lamination the slice section information to the powder by the level scanning, scans to the powder agglutinates the solidifica

19、tion (polymerization, agglutinates, caking, chemical reaction and so on), layer upon layer superimposes, piles up the three dimensional entity workpiece. this technical most major characteristic is can at the same time use several kind of different materials (the polycarbonate, the polyethylene chlo

20、ride, the paraffin wax, the nylon, abs,the casting granulated substance) makes components.2.1.4 fuses the deposition to take shape the technology (fdm)the fdm technology is may squeeze out by the computer control fuses the condition material the spray nozzle, determines the geometry information acco

21、rding to the cad product model lamination software, squeezes out half flow regime the heat to model the material deposition to solidify the precise actual workpiece thin layer, from bottow to top layer upon layer piles up a three dimensional entity, may make the mold or the product directly.2.1.5 th

22、ree dimensional printing take shape the technology (3dp)the 3d-p technology controls with the microcomputer to spurt the ink printing headcontinuously, the basis lamination software selectively deposits the liquid cementing material by the level on the powder level, finally piles up a three dimensio

23、nal entity by the smooth printing two-dimensionalleve justs like does not use the laser the fast pattern making technology. this technical main application takes shape in advance in the cermet compound materials porous ceramics on, its goal is produces the mold or ? the manufacture directly by the c

24、ad product model.2.2 surfaces take shape the pattern making technologythe surface takes shape the pattern making technology, mainly is the use spurts spreads, the electrolytic casting, chemistry corrosion and so on the new technique formation cavity surface and the fine pattern one kind of craft tec

25、hnology, in the practical application including following several kind of types2.2.1 electric arcs spurt spread take shape the pattern making technologythe electric arc spurts spreads takes shape the technical principle is: has the electric arc quantity of heat using between 2 circular telegrams tin

26、sel to melt the tinsel, depends upon the compressed gas its full atomization, and gives the certain kinetic energy, high speed sprays in the type mold surface, layer upon layer mounts, forms a metal shell, namely the cavity internal surface, uses to fill the substrate material again (generally for m

27、etal silt and resin compound materials) performs to support the reinforcement, enhances its intensity and the rigidity, combines the mold together with the metal pattern frame. this kind of pattern making technology craft simple, cost low, manufacture cycle extremely short, the cavity surface takes

28、shape only needs for several hours, saves the energy and the metal material, general cavity surface 2-3mm is only thick, simulation greatly strengthened, the pattern precision may achieve 0.5 mu m.at present this technology widely uses in superficial shape and so on airplane, automobile mold, electr

29、ical appliances, furniture, shoemaking, fine arts handicraft is complex and the pattern fine each kind of polyurethane product blow molding, attracts models, the pvc injection, pu becomes spongy and each kind of injection takes shape in the mold.2.2.2 electrolytic castings take shape the technologyt

30、he electrolytic casting takes shape the technical principle to be same with the galvanization, is according to model the mold (ready-made product or female mold which makes according to product blueprint) is the datum (negative pole), places in the electrolytic casting fluid (anode), causes in the e

31、lectrolytic casting fluid the metallic ion to return to original state a latter place deposition on the type mold, forms the metal shell, after strips it, contacts the surface with the type mold namely for the mold the cavity internal surface.this technical main characteristic is saves material, the

32、 mold manufacture cycle short, electrolytic casting level degree of hardness may reach 40hrc, enhanced the resistance to wear and the life, roughness, the size precision is completely consistent with the type mold, is suitable for the injection, attracts models, the blow molding, keeps out models, m

33、old cavity and the electric spark and so on bakelite mold, glass mold, compression casting mold takes shape the electrode manufacture.2.2.3 cavities surfaces fine pattern takes shape etching technologythe etching technology is optics, chemistry, the machining synthesis application one kind of techno

34、logy, its basic principle is makes first the pattern design the film, then in has spread the film on pattern design duplication the photosensitive material on the mold cavity surface, process chemistry processing, the mold cavity surface does not form by the etching partial protectors, then acts acc

35、ording to the mold material quality, the choice corresponding etching craft, pattern design etching in mold internal surface.this technical main characteristic is the time short, the expense is low, patching damages the pattern design to be possible to achieve flawlessly.2.3 sprinkle to cast into th

36、e type system mold techniquesprinkling to cast into technical and common characteristics of the type system mold is according to the kind piece for basis, sprinkle a convex and cave mold, a surface do not need the machine to process.make physically to mainly have following several categories type in

37、 the mold.2.3.1 tin metal alloy system mold techniquethe tin metal alloy makes the mold technique quickly is a basis through the kind piece, with total metal alloy of (the orders 138 °cs, the bulge rate is thousand times it three) of the bi- sn( tin of) two dollars for material, have the precis

38、e foundry of method at the same time a convex mold, cave mold, press a kind of technique of the side turn.should the technical characteristics is to make the mold cost low, the metal alloy is re-usable, the manufacturing period is short, the size accuracy is high, the shape, size and the kind pieces

39、 agree with completely, a mold for casting life span can amount to 500-3000, very in keeping with new product development, craft verification, the sample manufacture on a trial basis and win small batch quantity peace.2.3.2 zinc metal alloy system mold techniquethis is a kind of to take the kind pie

40、ce( or the kind mold) as the basis, with the order for 380 °cs or so zinc metal alloys for material, sprinkle to note the convex and cave mold respectively, a surface does not carry on one kind system mold technique that the machine process in principle.the technique's characteristics is to

41、 make the mold cost low, the period is short, being applicable to create the lamella large pull to stretch the mold and hurtle to cut the mold and plastics molds.2.3.3 resin compounds model the molding tool techniquethis is a kind of to take the kind mold( or the craft model) as the basis, taking re

42、sin or its compound materials as the fluid material, sprinkling the convex( cave) mold of outpouring first, again the convex( cave) mold of basis sticks up the wax slice( the cleft layer), sprinkling to note the convex( cave) mold.a surface that that technique model does not need the machine to proc

43、ess.the that technique and cad/ cams combine together, the characteristics is the molding tool size accuracy high, the manufacturing period is short, the cost is low, is the new product manufacture on a trial basis, the small batch quantity produces the craft material of new path.be applicable to th

44、e creation large overlay the piece to pull to stretch the mold( also can the part inset the steel), vacuum to absorb the and gather the ammonia ester hair bubble to model the mold, porcelain and ceramics mold and imitate the type to depend the mold and cast mold etc.2.3.4 rubbers of system mold tech

45、niquethat technique take making a prototype or models as the basis, making into soft rubber of system piece, then depend the high pressure dint and models to fit together completely.2.4 extrusions takes shape the technology2.4.1 cold extrusions takes shapeusing the berylliuim copper alloy good therm

46、al conductivity and the stability, after the solid melt aging treatment of metal, use the swaging pressure to make the mold concave model cavity. its characteristic is makes the cycle short, the cavity precision is high (the it7 level), surface roughness ra=0.025 mu m, the intensity is high, the lif

47、e may reach 500,000 times, does not have the environmental pollution2.4.2 ultra models takes shape the pattern making technologythis technology is using the metal material in the thin crystal grain, certainly takes shape the temperature, under the low distortion speed condition, when the material ha

48、s the best superplasticity, toes attend to carry out raised mold which the initiative finishes, then may extrude the concave mold with the small strength one kind of fast economical pattern making technology ultra models takes shape material typical representative is zn-22%al.2.5 does not have the m

49、old multi- spots forming technologydoes not have the mold multi- spots fast forming technology is by cad/cam/cat the technology is the main method about, may adjust the base main body group highly using the computer control to form forms the surface, replaces the traditional mold to carry on the thr

50、ee dimensional curved surface forming to the sheet an modem advanced manufacture technology. this technology may change the distortion way and the stressful condition at will, enhances the material the formed limit, may form repeatedly, by this elimination material interior remaining stress, the rea

51、lization does not have the snapping back forming2.6 triumphant uygur bright steel belt blanking falls the material pattern making technologythe new steel belt blanking falls the material pattern making technology is one kind is different with has raised, the concave mold structure steel belt mold ge

52、nerally, it is with specially makes the new fast economical pattern making technology by the single edge steel belt which the backing strip is composed this kind of mold weight is light, only then 200kg, the processing precision for ±0.35-0.50mm, may suit each kind of black and the non-ferrous

53、metal 0.5065mm thick sheet processing generally. the life may achieve 5-25 ten thousand, the production cost is low.2.7 molds semiflnished materials fast manufacture technology solid castingbecause the massive molds are belong to the single unit or the production, the mold semifinished materials man

54、ufacture quality and the cycle and the cost to the final mold quality and cyclical and the cost influence are very important.the modern mold semifinished materials widely have used the seeds casting technology, the so-called solid casting is (polystyrene ps either polymethacrylate pmma) manufactures

55、 using the foam plastics replaces traditional the wooden mold or the metal pattern, after the modelling does not have to take out the model, then may the casting, under the foam plastics model high temperature liquid metal function, deflagrate the gasification but to vanish, the molten metal substit

56、ution original foam plastics model holds the position, after the condensation forms the casting. the solid casting has the following several kind of situations in the practical application.2.7dry sands solid castingnamely all does not do any cementing agent quartz sand modelling with 55-100 goal, sp

57、reads with eps or the pmma foam plastics manufacture model hangs the 0.2-1mmthick permeability good fireproof coating level, by enhances the casting superficially attractive fineness, prevented the fat sand or collapses the box.negative compactions castingthe negative compaction casting calls v law

58、modelling. this technology is the use all does but does not have the cementing agent the quartz sand to make the molding sand, makes the model with eps or the pmma foam plastics, in under the plastic film seal condition, entire lets cast (vacuum degree 0.4-0.67mpa) carries on the liquid metal castin

59、g under the negative pressure condition, after the casting coagulates relieves the negative pressure then to obtain the superficial bright and clean casting-resins granulated substance solid castingmakes the molding sand using the resin granulated substance, makes the model with eps or the pmma foam plastics, under the normal temperature, the atmospheric pressure carries on the liquid metal casting but to make takes the casting, uses the solid casting the technical manufactu