Overcome mill of face of bimetallic engine cylinder body to machine a challenge

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  • source:LENA CNC Machining
Increase of demand increasingly to light qualitative engine as the market, more and more clients need corresponding cutting tool and method to machine bimetallic engine cylinder body. Discharge to reduce carbon dioxide, all mobile vehicle (for example plane, ship, car and lorry) pressing need reduces weight. The vehicle that pledges gently means carbolic discharge capacity to reduce. To satisfy these requirements, manufacturer of engine of a lot of cars been developinging cylinder body of engine of light qualitative bimetallic, its main body is made by aluminum-silicon alloy, and exposing the cylinder bushing at high mechanical load and hot load is by grey mouth cast-iron (GCI) is made. Both union, can ensure mechanical dependability, and weight wants than traditional cast-iron engine cylinder body a lot of lighter. But it is a little intractable that treatment rises, because the mechanical function of two kinds of metals is very different. Phillipe Andre of engineer of global car application says Shanteweikekeleman: "The face mill of combustion face is engine cylinder body is final one of a few working procedure. If fail, mean whole spare parts to may want to discard as useless, price is very high. " when 　 machines bimetallic, a kind of razor blade wants at the same time cutting heats up the material with function and mechanical very different function two kinds. Aluminium alloy changes in molten of the meeting below high temperature stick, and cast-iron stuff can become fragile and intensity is high. Difference of quality of short, surface, burr forms cutting tool life, exterior scratch and edge of cylinder bushing collapse are common challenge; Must ensure to these flaws cannot appear in machining a process. Emmanuel David of manager of product of car ministry whole world says Shanteweikekeleman: "In addition, the automation of height of automobile manufacturing industry nowadays, unmanned production reachs higher level. Imagine, nonsked and change often bit (sometimes circumstance even more flooey, bit dies suddenly blade) can produce how many cost. " 　 because this, begin to develop new solution for car engine manufacturer when automobile group when, quality of honest cutting tool life, surface, repeating precision and stable craft is main consideration element. Phillipe explains: "Do not underestimate this working procedure to be opposite forever the demand of good appearance quality. Edge of cylinder bushing collapse even apparently petty scratch can bring about product happening leak, function is low, increase finally discharge. " the client demand that 　 differs to satisfy, shanteweikekeleman's France and Swedish group development go two kinds of solutions: The face milling cutter that is used at transfer matic or machining center provides M610, and what apply tie-inly at machining center to it is brand-new machine craft. M610 cutting tool undertook assorted to bit and design with innovation means. Bit has special radial and axial cutting horn and particular point processing, when milling bimetallic, quality of surface of very good and can contented workpiece and public errand ask. "A of M610 main feature is this cutting tool does not need any adjustment, this cutting tool that wins patent can ensure faster face quality. Phillipe says, this solution suits to eat width to amount to the engine production of diameter of whole cutting tool. David says: "In the numerous client test that carries out in us, the result of cutting tool of M610 face mill is very outstanding. Jumpy quantity is close to Yu Ling, the surface does not have edge of burr, collapse or scratch. " the complement that regards M610 as the function, shanteweikekeleman still rolled out a kind of brand-new bimetallic to machine a method, this kind of method basically is to adopt method of ably design cutting tool, the treatment of will cast-iron cylinder bushing and aluminium alloy parts as far as possible, come so, bit can machine the metal with two kinds of disparate function at the same time scarcely. This kind of new method is based on the CoroMill that uses CBN bit®Concept of mill of essence of 590 high speed, already proved to have outstanding effect. This solution suits to ask the engine of flexibility is produced, or the operating mode that quantity of exterior penetration of a cutting tool need not amount to diameter of whole cutting tool. David sums up: "Two kinds of concepts produce supportive automobile manufacturing industry more the determination of environmental protection engine. Up to now, the respect of face milling foreword in bimetallic combustion face, engine manufacturer feels intractable. To this kind of huge demand, aux will be able to of our two kinds of solutions is quite very good and contented. Aux will be able to of our two kinds of solutions is quite very good and contented.. CNC Milling