Processing technique of Swiss type cutting reachs his to apply

The common difference of 125mm is used not quite. " Vince Robisch of this company president thinks 0.

The public errand of 125mm is no good completely. To show his point of view, robisch president is with a diameter 1.

The miniature bolt of 575mm is exemple made the introduction, this bolt is with beryllium bronze club skip is become, turning when this bolt, cutting tool should rely on guide-post bushing closely, its distance does not exceed 0.

508 ～ 0.

635mm, can carry material on the head the turn otherwise. Robisch thinks, law of Swiss type turning is the only method that machines small-sized spare parts, the machine tool of other type cannot be competent. This kind of treatment has undermentioned two characteristics: (1) has fixed guide-post bushing; (The tip before 2) has axial activity type. The place that differs with common lathe is, swiss type machines the shift of axis of lathe edge Z to be finished by workpiece, cutting tool makes radial motion along X axis. Besides the structural appearance of cutting tool and workpiece, a when maintain precision important facet is cutting tool / the contact of workpiece should stand by machine tool guide-post bushing as far as possible, it is commonly 0.

635 ～ 1.

016mm. Specific size depends on workpiece diameter, diametical hour, its distance wants some shorter. Robisch president thinks, in treatment, fixed guide-post bushing is added clingy ever since cutting tool -- cutting tool cannot be far from guide-post bushing absolutely. These two conditions close, can obtain high accuracy. Machine tool head wears a belt to wear good stuff moves back and forth, make workpiece undertakes cutting through cutting tool. Bill Cox of president of Cox production company points out, on one hand guide-post bushing is crucial to Swiss type treatment, but on the other hand, it also brought many issues. Because workpiece grows diameter to compare metabolic be caused by,this is. This kind of phenomenon expects in use figuration club (if the square is mixed 6 square are sectional) when highlight particularly. Figuration club makings is in in guide-post bushing when movement, inhomogenous sex should compare the turning of generation the machine tool of fixed head posture that does not have guide-post bushing is serious. The choice Switzerland type of mechanical and machine tool of numerical control type machines used machine tool, can divide for cam type and numerical control type two kinds. Cam type machine tool but fractionize is two kinds: One kind is medium-sized " workpiece roll type " , another kind is " workpiece stationary " , cutting tool circles the lathe of helix feed formula that workpiece rotates. Be in Remco company, machine tool of workpiece revolving cam, far over costly numerical control machine tool, the amount is 4 ∶ about 1. In the meantime, like factory of treatment of numerous Switzerland type, remco company apt uses special cutting tool and special cam. Robisch of this company president claims, we do not use off-the-peg general cutting tool, receive the order of a new part, we design special cutting tool, these cutting tool serve for this spare parts only. After the task that finish, save cutting tool rise. When next time again congener spare parts needs to machine, need not redesign cutting tool, the user also need not pay cutting tool fee again. Cox production company thinks, cam type workmanship heretofore still very applicable the reason that has vitality is, a group of cam are made with old technology 20 years ago, both neither is accurate, cost is high also. Now the cam of the day is designed with special software, in the treatment on numerical control machine tool, already accurate economy, can saying is the function that numerical control technology improved cam type machine tool. The section chief Dave Branvold of Bay Swiss production company points out, swiss type machines the characteristic of cutting tool, besides small-sized outside, still need to have bigger hind horn, in order to reduce cutting pressure, make cutting tool will not bear overmuch attrition force. Otherwise, the club expects possible card is in guide-post bushing. The 2nd characteristic of this kind of cutting tool is need before horn. Till the last few years, people is not used but dislocation razor blade, its reason was not to satisfy afore-mentioned requirements, this forces a processing factory to must be ground with proper motion of base of hard alloy knife make appropriate bit. Now, as a result of but the improvement of function of structure of dislocation razor blade, use already increased with each passing day. The condition that Branvold mentions, individual phenomenon is not in Swiss type treatment. A lot of processing factories think the simplest way is type of the solder that use drill rod hard alloy cutting tool, grind a proper point of view by oneself. Branvold, Robisch and Cox production company emphasize, they need special cutting tool in treatment. Cox production company thinks, our cutting tool is to be specific utility to grind only those who make. The technical manager David Wills of Stellram tool company expresses to understand to afore-mentioned circumstances. He says: "We are maintaining connection with domain of this one treatment all the time. As a professional factory that comes over from Europe, our advantage machines a respect in small-sized turning. Our company seek all the time the user helps in proper domain: If the user cannot solve a problem over other tool supplier, we wish to cooperate to it, provide a service. Branch of our research and development can help his improve quality and shorten man-hour. " to tool supplier, the part with the most driving growth of Swiss type cutting tool is in CNC Machining domain. The numerical control machine tool in Swiss type treatment and cam type machine tool lie differently at: Cutting tool basically uses coating but dislocation razor blade. Cox production company claims, in Swiss type CNC Machining, our majority is used but dislocation razor blade. Dick Reiling of Micro-Matics company president points out, he does not think some day is all the technologist that is engaged in Swiss type treatment can stop abstain cutting tool. But he admits, we are trying to be used as far as possible but dislocation cutting tool. Although they are very expensive, but after cutting tool wears away, change handy, man-hour loss is very few. Is the market in is growth what force makes Swiss type treatment achieves constant growth? The technical manager David Wills of Stellram tool company thinks, this is industry of new and high technology helps the development that used Swiss type treatment. Spare parts increasingly to dimension small progress of small, weight, of special rule material use also add with each passing day much, precision demand is very high also. The equipment supplier that type of a few Switzerland machines expresses: Recently two years, their portfolio rose 45 ～ 50% , and other any machine tool suppliers are impossible to the growth of 50% is achieved inside two years. Centary tool and the vice-president Raymond Koontz that design a company agree with afore-mentioned viewpoints. He thinks, the demand of hi-tech domain, especially computer industry is right the demand of spare parts of accurate stainless steel, it is one of the biggest reasons that Swiss type treatment grows. For example, on switch of a kind of two-way contact, two spare partses can serve as the delegate that uses Swiss type to machine made numerous part. One kind is the titanium alloy plug-in unit that with Yugenbutong, another kind is a powerful person of steeliness needle entity of hydraulic pressure system. Their characteristic is fine and long and very nice spare parts, internal diameter public errand asks 0.

01mm, external diameter public errand asks to be in 0.

0076mm. Equiping in the factory of lathe of Swiss type screw, the lot that produces afore-mentioned similar parts is 1000 ～ 500000, sometimes batch is bigger. Odd a man-hour is low amount to 6.

5 seconds. Treatment of type of this kind of Switzerland is commonly in the factory of specialization undertake, and walk along a knife to excise the allowance of 90% in first time normally. The good point that such doing is in can growing workpiece to machine, keep homocentric degree, and the finish machining working procedure such as leave out grinding. However, it is conditional that the quality that Swiss type machines should achieve Gao Shuiping: It is work semifinished product above all good stuff wants a circle and even. If good stuff has deviation, go up to workpiece with respect to conference report. So, the copper that produces by standard of Swiss style quality, steel and stainless steel club expect, add fathered tolerancepublic errand, satisfied the requirement that agrees equably. But the cold-drawing club of standard of Swiss style quality expects, supply without merchandise on hand. Can add a to go with common cold-drawing steel cuticular grinding treatment will assure its circularity. Such, cost should raise 15 ％ ～ 20% . Company of Lombord Swiss Screw is processing factory of type of a Switzerland. Cut steel the bronze of its turning red copper, brass, phosphor, aluminous, steel that contain lead, easily, 300 mix with 400 series stainless steel alloy of nickel chromium molybdenum (8620S) . Bernie Seewald of this company president discovers, cutting tool life follows work bright and clean spend a requirement and change, and the impact that data varies is bigger. For example, a cutting tool machines same part, 2000 can be cut when material is stainless steel, material is 3000 ～ can be cut when cutting red copper easily 4000, and 20000 ～ are achieved when material is brass 50000. Seewald says: "As a result of 303 with 416 series stainless steel very difficult cutting, so we use stainless steel of Carpenter Project70 series, it compares easy cutting. Cutting tool uses cutting tool of type of solder of drill rod of Micro 100 hard alloy commonly, repair with diamond emery wheel grind angle. In addition, also use TiN coating but dislocation razor blade. " the structural design of the life of cutting tool and workpiece also is concerned. For example, when machining orthogonal stage shoulder and corner, when life of its cutting tool compares treatment round role low. To the treatment of orthogonal spare parts of certain material, life of its cutting tool 1000. Because the motor-driven feed of Swiss type treatment is sinistral, so all sorts of cutting tool include broach, reamer to wait for must be left cutting. This makes cutting tool makes special rule variety. For example left cutting reamer is supplied without stable merchandise on hand, use factory must be abstained. In Swiss type treatment, still must note cutting tool and work between, the mutual influence between workpiece and machine tool. For example, although conduce to turning growing,guide-post bushing of the buy inside collet is used in treatment model spare parts, but when machining small diameter spare parts, because the heat conduction ability of cutting area is restricted, the influence that heat expands becomes an issue. Want to limit cutting rate so, lest had produced as a result of much quantity of heat,stay in workpiece solder in guide-post bushing. For example, machine a diameter 3.

175mm, length is 50.

The spare parts of 8mm, its cutting speed must be in 27.

4m/min is the following. In Swiss type treatment, although new-style machine tool is of numerical control, but machine tool of estimation cam type still occupies 60 ～ 70% . Even if numerical control machine tool, also be to use treatment small-sized spare parts, general club expects the biggest diameter does not exceed 31.

75mm. Too old good stuff can be caused it is difficult to assemble and unassemble. For example, the diameter comes greatly 50.

8mm, length is the semifinished product of 3658mm, as a result of ponderosity, it is difficult to assemble and unassemble so. In addition, large size part should carry strict noncombatant duty, be about to pay high price, this also can say is a kind of when process volume of spare parts dimension to Swiss type immanent limitation. It is currently in domain of Swiss type treatment, the severe shortage that facing the member that operation personnel, attune gives others a hard time and process designing personnel. Besides personnel shortage, the adjustment of the machine tool in Swiss type treatment and process designing also are a difficult challenge. Normally machine tool of a CNC machines a kind of new part, its settling time is long to 8 hours, content includes to come more 16 cutting tool and the cutting tool way that reach 7 axes and its are correct and ordinal operational arrangement, and good stuff feed implement adjust, ensure treatment gives eligible part finally. Rose grooms the Steve Rose of systematic company says: "Of the standard groom cycle is: Groom personnel of a mechanical operation comes one grade level, can operate Swiss type to machine a machine tool namely, need 2 ～ about 3 months; Groom to 2 grade level, can adjust a machine tool namely, need 9 months about; Groom to 3 grade level, learn process designing namely, need 1 year about. " should say, afore-mentioned these grooming the cam design that has not included vintage machine tool and the mastery of a skill or technique that create a need and knowledge inside. And these vintage machine tools still are used at the technology to ask inferior spare parts is produced in great quantities up to now. Before, the cutting tool that institute of plant of Swiss type treatment uses is solder to go up in steeliness arbor by hard alloy razor blade, so this kind of cutting tool calls drill rod solder or stick the cutting tool that receive form. But in recent years the circumstance changes somewhat, manufacturer of a lot of tools is aimed at the need that Swiss type machines, rolled out more to be saleable of satisfy the need but breed of dislocation razor blade. Although the sheet of cutting tool of type of drill rod solder cost is inferior, and can grind again 10 for many times (even about a hundred) , and but dislocation razor blade can turn a few times only hind discard. But, the need that improves labor productivity makes works of Swiss type treatment raised but the try out of dislocation cutting tool. Whiz Cut(United States) company president Tommy Townsend pointed out this kind of tendercy. He says cutting tool of type of drill rod solder needs to get off to be ground again from the machine tool, weigh the machine tool on new clothes and adjust it to proper place again, this thing is done should compare but difficulty of dislocation cutting tool is gotten much, and get off, grind again, install settling time to be as long as 5 minutes again. But dislocation cutting tool is used blunt hind turn a position need 11 seconds only, and the relative position that holds cutting tool and work is changeless. He thinks cutting tool of type of drill rod solder has been technology of a kind of antiquated. If assist the machine tool,the loss of time and labor man-hour considers inside, the cost of cutting tool of drill rod solder is as high as 1000 dollars. Now, tool manufacturer is rolled out ceaselessly new but dislocation razor blade, anybody can pick applicable bit. So, people begins to use cutting tool of drill rod solder not quite. Townsend points out finally: "As the growth that Swiss type turning machines, and factory of Swiss type treatment is consumed more but dislocation razor blade, on American market the demand quickness of this kind of cutting tool increases. We had had 150 users, this number is increasing everyday, was head and shoulders above original anticipation. " the Dave Strobelt of manager of department of production of Swiss type tool of Manchester tool company also thinks: Swiss type treatment is in every year growth. But with respect to market of all-american metal cutting character, specific gravity still is less than 10% . Nevertheless, tool manufacturer still is paying close attention to this potential market. From the point of development trend, will more and more tool manufacturers offer the variety of special cutting tool that machines a service for Swiss type. The Swiss type cutting tool of company of tool of Manchester of coating razor blade produces department manager Dave Strobelt to point out, as a result of the use of coating, make but dislocation razor blade goes to the lavatory not only efficient, and improving workpiece appearance bright and clean degree, reduce the tumour that accumulate bits and improvement to cut bits to control respect Dou Zhuo to have effect. The double head razor blade of Manchester company, via grinding acute, use TiN of PVD besmear Fu and TiCN, when making bit is processing 300 series stainless steel, effective ground prevents to accumulate the generation of bits tumour. On bit break bits implement still can plant to this what arise when stainless steel cutting is banding cut bits to give control. Strobelt still points out, the razor blade of a kind of CSV that this company produces, classics essence is ground, polishing, reach lens range bright and clean degree, make sure the workpiece surface that is cut is more bright and clean thereby. This to small size (treatment of parts of an apparatus of the medical treatment that the diameter is less than 5mm) , dentistry is crucial. This kind of razor blade is very applicable to cam type and machine tool of numerical control type. The Wills of Stellram tool company also points out, small diameter and external form are complex the typical feature that is spare parts of treatment of Swiss type turning. When this kind of spare parts is machined, the bit course that requirement tool works offers grinds acute subtly, when using but need not make additional nap to blade. He still points out, the circumstance that machines to Swiss type, only coat effect is best, the coating of heavy panel (6 μ of 5 ～ ) not applicable instead. The Noal Buschmohle of assistant general manager of NTK tool company points out, coating can prolong cutting tool life, so, the Swiss type that NTK company sells machines bit 90% pass coating. Although the company emphasizes again and again, user proper motion grinds a likelihood again generation crackle, damaged and bright and clean degree of malady such as aggravation, but still a few users are used to be being ground again by oneself, to take care of this share requirement, our company leave factory bit has 10% not coating. The Koontz of Century tool company besides it is very important to prolonging life of Swiss type cutting tool to agree with coating outside, still emphasize cutting bits pilot necessity particularly, cut off a knife especially. He thinks, of Century cut off bit extreme to open a slot, use at " smash " cut bits. If do not have this chamfer, cut bits to be met form of roll into Q, break off again next roll out. This process makes cut bits to hold off what cooling oil makes to cannot reach point. And the bit that takes bits chamfer makes cut bits to just came off be smashed instantly, make cutting oil irrigates Xiang Ren mouth continuously thereby. The razor blade that type of bit matrix Switzerland machines, the majority makes matrix with fine grained hard alloy. The applied engineer Brent Lindsey of company of Kyocero industry ceramics says, in Swiss type treatment, a few razor blade use cermet and pottery and porcelain. And the choice of cutting tool material basically depends on the circumstance that machines working procedure and workpiece material. Iscar metal (the United States) the technology of the company grooms department head Mike Gadzinski points out, the bit matrix that Swiss type machines basically is hard alloy. Cermet razor blade is in below high speed condition when application, because cut bits flow is light, the workpiece appearance with can be obtained better is bright and clean degree. But, the main shaft rotate speed of machine tool of Swiss type treatment normally not quite tall, so more comfortable at using hard alloy bit. Falling under the speed of 213m/min, cermet cannot show its advantage. The Swiss type cutting tool of Manchester tool company produces department manager Dave Strobelt to think, of coating and matrix optimize those who match degree to decide speed and feed to use a level. The technical manager David Wills of Stellram tool company emphasizes, matrix of fine grained hard alloy is very important to Swiss type turning. But he thinks again, cutting tool function 60% depend on coating quality and its union strength, only the influence that 40% ability are bit matrix and geometrical parameter respectively. In interview, all tool manufacturer agree with such view: Increase of consumption increasingly as Swiss type cutting tool namely, be sure to have more efficient but dislocation cutting tool is rolled out, in order to replaces cutting tool of common drill rod solder. The Swiss type cutting tool of Manchester tool company produces department manager Dave Strobelt to say: "I believe, when the cutting tool breed that needs in the user can be bought, they can are opposite but dislocation cutting tool establishs confidence. They can are opposite but dislocation cutting tool establishs confidence.. CNC Milling