The processing technique of cut of place of Yu Liu of the workpiece in treatment of narrow line cut and skill

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3mm copper silk) receive in negative pole, receive the work that be added in positive electrode (graph 1) , when polar bring to bear on when constant tension, interpose produces discharge phenomenon at the electrolyte in clearance, use instantaneous high temperature, make be come off by treatment place material with vaporization, consequently it can process the data that all sorts of groovy machining methods process hard, in the meantime, as a result of line electrode ceaselessly treatment of edge shift, edge, such although line electrode produces loss, also can complement continuously, because this can raise treatment precision. Having so outstanding advantage because of machine of cut of electric spark line, so machine of cut of electric spark line is used at penetrable form to develop the treatment that reduce a standard not only, return the treatment that can be used at special type spare parts and tool electrode, its demand already exceeded electric spark forming machine double, the main force that becomes treatment of special type report equips.  as worldwide inside the development of mould industry new technology, new material and new technology, to enhance the wearability of the mould, people uses the mould data of all sorts of high strenth, tall hardness and tall tenacity extensively, this is very advantageous to improving the service life of the mould, but the technical divisions put in order that after it gives workpiece of cut of electric spark line treatment of Yu Liu place, brings causes inconvenience. The author discovers in education, scientific research and manufacturing practice, want to realize the requirement of precision of mould fast face and high production efficiency, the treatment after must reducing line cut as far as possible works, and the treatment issue that this decided to people cannot use one-time line to cut machines means and should use sexual line cut for many times to machine means to handle workpiece beyond to take place, such ability make sure workpiece beyond leaves precision of the exterior quality of place and surface. Mix to tall hardness, high accuracy especially Gao Fu is miscellaneous degree, and for the little work that processes the surface to be blame plane, the method that uses cut treatment for many times handles workpiece beyond to leave the cut task of place to appear more important.  1 processing technique and skill  to cut of place of Yu Liu of line cut workpiece machine for many times, must solve above all by the electric issue of treatment workpiece, because be in treatment of cut of high accuracy line, the travel of line electrode walks the line may need to walk for many times along treatment contrail move back and forth, ability assures to be had by treatment workpiece faster face surface roughness and exterior precision, at this moment line cut treatment is to rely on workpiece beyond to leave place to remove electric action to machine on the rails in order to ensure report. But when the cut that undertaking workpiece beyond takes place is machined, if first time cut cuts next workpiece beyond to take place namely, will bring about be departed by cut part and matrix, loop of electric conduction of as a result is interrupted, cannot undertake continueing to machine, the conditional sex that machines from line cut so and continuity consider, must make workpiece beyond leaves place even if to be in for many times below the circumstance of cut also can maintain with ask electricly normally between the mother's body.  to achieve afore-mentioned goals, author strive builds factitious environment and condition to satisfy electric requirement, operating good luck of cut of electric spark line to arrive when place of Yu Liu of workpiece of instruction MOO cut when the staff member namely, can adopt the position condition that sticks sheet copper and the processing technique in sheet copper of a place of strategic importance in cut clearance to cause a person to be between the matrix that be mixed by cut part and electric requirement, making is scintilla treatment be able to proceed, its are specific practice and skill are as follows:  (1) is being divided by cut ministry with material of the mother's body between stickup join sheet copper. Its purpose is to make workpiece beyond leaves a part to be linked together with material of the mother's body when cut fixed, make sure line cut has good fixed position requirement, ensure workpiece to have superior treatment quality thereby, this but measure undertakes under according to.  ① above all the size according to processing work thin sheet copper (circumstance of electrode of ply basis line and process place form and decide) cut strip contrast, next fold, the well assures fold part one long, if pursue,2 are shown. The end that uses short sheet copper is the thickness that reduces sheet copper, make go up nozzle is close to workpiece to machine place more, so that machine precision at rising;  ② makes the same score flexure of sheet copper folding with hammer of small hand hammer next, repair a graph with assorted file 3 show figure;   ③ fills in the sheet copper that handles via above in the aperture that line electrode treatment forms again, be in at the same time workpiece this people on exterior drop 502 glue (namely epoxy resin instantaneous is wash-and-wear glue) . As a result of cut when, high pressure of machine of cut of electric spark line makes power of work place press press greater to water, if pure make sure with sheet copper a place of strategic importance electric conduction is mixed closely fixed, produce the following problem easily: (A) sheet copper fills in too loosely, concern secures fluky, electric conduction to be not stabilized; (B) sheet copper fills in too closely, worry about injury again workpiece surface, destroy form tolerancepublic errand, use 502 glue to assure to be secured by cut part and material of the mother's body so;  ④ is filling in sheet copper when taking treatment place, should press a plan 4 BC paragraph fill in into aperture, and AD paragraph break smooth, make go up nozzle is close to workpiece to machine precision in order to assure more. After treatment ends, break its again can take out sheet copper from inside aperture continuously. Should noticing especially here is with sheet copper of 502 sizy and stickup join Shi Yingyuan leaves workpiece beyond to leave a component to be in (if pursue the BACD of 5 paragraph) , lest 502 glue waterlogging is located in the Kong Li wearing silk of the seal wire mouth of its lower part to as it happens, cause the aperture that wear silk to jam. The semmetry of Lv of positional take an examination of sheet copper of in addition stickup join distributings, and should make sure a place of strategic importance is close at the same time, avoid workpiece happening deflection, as a result affects workpiece to machine quality. The line cut treatment that to in an attempt to shows pattern of punch of the envelope outside antrum of accurate electron resonance 5 times is exemple, be like sheet copper of stickup by E, G join, and intensify at the same time, can assure by cut part won't deflection, also can assure to be mixed by the validity of appearance of place of cut workpiece Yu Liu of precision reliable (2) is in by cut fill is electric between part and material of the mother's body sheet copper. classics fold, cut neat, hammer gentle the thin sheet copper that repairs file in the aperture that online electrode treatment forms fill, make sheet copper and aperture wall close together joint. Fill the purpose of this sheet copper is for electric conduction, because in front 502 glue were used when stickup join sheet copper, and 502 glue are not electric. To realize electric demand, reason uses the method of sheet copper of fill electric conduction, the semmetry that fill should notice sheet copper likewise when electric sheet copper is decorated and sheet copper should intensify at the same time, and lest,cannot fill in too closely the surface of cut workpiece.  basis the author's experience, no matter be the appearance of aperture of stickup join sheet copper or copper of fill electric conduction. Be like to in an attempt to 5 for exemple, should make small sheet copper into circular arc form namely, and the sheet copper face that still should be crossed by hammer with burnish of metallographic emery cloth, already machined the face that cross in order to shun cut work in order to make sure sheet copper surface is slick. 2 conclusion of  are using machine of cut of electric spark line to machine tall hardness, high accuracy and Gao Fu miscellaneous when spent small-sized workpiece, the accurate cut of place of Yu Liu of the workpiece in undertaking according to afore-mentioned methods and measure line cut is machined, it is the method of a kind of effective, the measure that it offers and skill, economy is practical and handy, feasible, it is improvement and the quality that improve treatment of narrow line cut and efficiency to accuse all alone to give new way thereby CNC Milling CNC Machining