【正文】 e is near。 The superimposed effect of servo systems of figures for the whole closedloop and expert system of PILOT EXPERT III can control the length of series pulse under concentrated discharge。 It is necessary to solve the problem of BTA reliably when finishing in a small space。 In finishing ， the time carrying knives were about and the height of lift about 10 times to the discharge gap ， so the knife will raising in 0。 So say enough strength simply mention high speed。 It is very difficult to EDM ， if we widen the scope of times under the characteristics of lowspeed with the highly demanding In fact， it is very limited to do effect to press the void time occupied by lifting under servo system 。 2. the processing of plex cavity It is a strength of Chamier to use the technology of translation to allocation of time reasonablely for the processing of plex cavity。 It can ensure the BTA patency。 Characterized by small size ， less allowance electrode manufacturing difficulties， they require machining， minimize loss， increase the success rate。 Die in the course of processing， water electrolysis work on the damaging effects of the impact on the quality of die major factor ， Its main characteristics are as follows : Open the binder dissolved surface， or surface micro cracks。 Electrolysis destruction has been reduced to the minimum。 ●Detect pulse individually and effective。 The two electrode wire are standby at their best condition and exchange reliable and rapid， It can ensure machine under uninterrupted operation。 In the absence of core processing occasions， may choose to plete with thick wireEDMmilling to remove most of cushion This fast and save expensive decoration。 Two friendliness guide wire leading to a Vshaped diamond guidance ， if one direction of diamond guidance be worn， can be reused with turning an angle 。 Chamier (Switzerland) pursuit the perfect performance of product and high quality of service as their goal。為達到上述要求，就需要透徹地研究電火花加工的機理：要保證所加工出的模具尺寸精、輪廓清，要求電加工設(shè)備的放電間隙一定要小，這就需要徹底解決小間隙下排屑困難、伺服性能要求高以及加工平穩(wěn)性等問題；在加工復(fù)雜型腔時，在不同方向上的加工難度和加工面積相差很大。由于電火花加工采取集中放電的方式蝕除金屬，在首放電后，放電凹坑的翻邊凸緣以及大量電蝕產(chǎn)物對間隙會有污染，導(dǎo)致第二次放電也在附近發(fā)生。 數(shù)字全閉環(huán)伺服系統(tǒng)和 PILOT EXPERT III 專家系統(tǒng)的作用疊加完全能有效地控制集中放電脈沖串的長度。 在小間隙精加工中，還必須可靠地解決排屑問題。 在如此 短的時間內(nèi)刀具行程如此之小，是很難達到高速的。同時為了保證在小面積的窄糟粗加工中獲得較高的抬刀速度，機床的最高速度被提高了 2倍，接近 3m/min，加速度達 。夏米爾采取的另一個措施是在 PILOT EXPERT III 的控制下，使抬刀參數(shù)的設(shè)置隨加工深度不同而變化，即開始加工時可以不抬刀，或隨機伺服抬刀。夏米爾采用的 ORB 平動軟件具有如下特點： ● 指令電極沿著要求的型面輪廓走，同時精修周邊和底面，這對控制尺寸極為有利。 在模具加工中，還會遇到微量型腔的加工問題。在多微細型腔加工中，夏米爾的電加工機床已達到加工時間的一致性不超過5%、電極數(shù)量減少 30%的成績。這主要是由于局部過熱，用工作液沖刷時又引起局部驟冷，致使表面開裂。 ● 逐個進行有效的脈沖檢測。夏米爾公司推出的 ROBOFIL2030SITW / 4030SITW 精密數(shù)控線切割機床能夠在 45s 內(nèi)實現(xiàn)φ 和φ / φ 電極絲之間的交換，故我們稱之為電火花線切割加工中心。同樣的，也可以用細絲加工完微型腔后，用粗絲來加工導(dǎo)絲孔或銷孔。 301