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模具外文翻譯---高速加工和現(xiàn)代模具制造-模具設(shè)計(jì)-免費(fèi)閱讀

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【正文】 2) The parison studying parison stops throwing into lack, sets up a project to quickcutting handicraft is difficult。 Lately, the MasterCAM pany has also developed the quickcutting automation programming software module。 2 adopts various method improving cutter lifespan, reduces cutter cost. 3 adopt the high speed hilt, HSK hilt, heat pressing applying the most being at present to pretend to grip a cutter. Pay attention to a cutter pretend to grip overall in the day afer tomorrow dynamic balance。 The finish machining mould wants to need to reach 15000 ~20200 rmp like the cutter, the machine tool with minor diameter. Generally, the chief axis rotation rate machine tool under 10000 rpm can carry out rough process and half finish machining,cannot reach the finish machining accuracy。 4)quickcutting cut down vibration, improve treating mass。需要各個(gè)方面協(xié)調(diào)發(fā)展,產(chǎn)學(xué)研結(jié)合,加大投入,綜合利 用 各個(gè)方面力 量 推動(dòng)高速切削在模具制造 中 的應(yīng)用。 包括電機(jī) 主軸的功率和轉(zhuǎn)速,進(jìn) 口 機(jī)床價(jià)格高; 2)機(jī)床的高速下動(dòng)態(tài)特性研究還不夠, 因 而影響整機(jī)的性能; 3)五軸機(jī)床還 不 夠成熟,進(jìn) 口 機(jī)床價(jià)格太高; 4)配 套技術(shù)和設(shè)備 還不完全。 根據(jù)材料情況合理選擇加 工 工 藝參數(shù) 國外高速銑削加 工 零件材料質(zhì) 量 較 好 ,材料質(zhì)量 標(biāo)準(zhǔn)相同,加 工 性能比較穩(wěn)定;而國外公司生產(chǎn)的刀具也是以他們的材料標(biāo)準(zhǔn)做試驗(yàn);推薦的加工參數(shù)一般比較適合他們的標(biāo)準(zhǔn),如果使用他們的刀具,與國內(nèi)的零件材質(zhì)有一定的區(qū)別,在高速銑削時(shí) ,這種差別表現(xiàn)得較為明顯,有些參數(shù)可以直接使 用,但有些效果就比較差。根據(jù)國內(nèi)模具高速精加 工 的經(jīng)驗(yàn),釆 用 小直徑球頭銑刀進(jìn)行模具精加工時(shí),線速度超過了 400~800m/min。硬質(zhì)合金涂層刀具、聚晶增強(qiáng)陶瓷刀具使得兼顧高硬度的刀刃部分 和高韌性的基體成為可能。許多機(jī)床企業(yè)瞄準(zhǔn)模具生產(chǎn),有的加 工中 心生產(chǎn) 廠機(jī)床的 60%以上賣給模具企業(yè)。 目 前,采用高速切削生產(chǎn)模具已經(jīng)成為模具制造的 大 趨勢(shì),在國外一些模具生產(chǎn)廠家,高速機(jī)床大面積取代電火花機(jī)床, 高 速切削 大 大提 高了模具生產(chǎn)效率。增長(zhǎng)從 1995 年的 25%增加到 2020 年的 50%。 指導(dǎo)教師評(píng)語: 簽名: 年 月 日 注: 請(qǐng)將該封 面與附件裝訂成冊(cè)。 2020 年中 國 機(jī)床工具工業(yè)產(chǎn)值將繼續(xù)增長(zhǎng)。但是,我國技術(shù)含量低的模具已供過于求,精密、復(fù)雜的高檔模具很大 部分依靠進(jìn)口。還存在機(jī)床、刀具 、 工藝以及其他方面的一些問題需要逐步解決。 2 五軸機(jī)床的應(yīng)用增加趨勢(shì) 1)加工路線靈活,表面形狀復(fù)雜; 2)加工 范圍大 ,適合多種類型模具加工; 3)切削 條件好,減少刀具磨損,提高刀具壽命; 3 購買 CAD/CAM 軟件和高速機(jī)床配套 據(jù)統(tǒng)計(jì),每年有幾十億美元用于進(jìn) 口 機(jī)床, 大 部分電加工機(jī)床和高速機(jī)床需要進(jìn) 口 。 但是,進(jìn) 口 刀具的昂貴價(jià)格也阻礙高速切削模具的重要因素。 , 目 前應(yīng)用最多的是 HSK 刀柄,熱壓裝夾刀具。 或者采用螺旋線或斜向進(jìn)給切入; 3) 恒定每刃進(jìn)給,提高質(zhì) 量 ,延長(zhǎng)刀具壽命; 4)輪廓加工保持在水平面上等。 1)由于高速加工模具的歷史比較短,缺乏應(yīng)用經(jīng)驗(yàn)積累; 2)對(duì)高速切削工藝研究比較少,投入不夠,立項(xiàng)比較困難; 3)缺少高速切削數(shù)據(jù)庫或手冊(cè), 目 前還是空白; 4)模具生產(chǎn)廠家對(duì)高速切削的認(rèn)識(shí)不夠,缺乏長(zhǎng)期效益的分析對(duì)比; 切削自動(dòng)編程軟件 CAM軟件。 The IT industry year increases % speed equally exceeding 20, the need to the mould accounts for 20 of mould marketplace %.2020 annual Chinese machine tools implements industry output value. will continue to increase. Our country mould fabrication market potential is enormous. The basis data counts, in recent years, our country mould year gross output value reaches 3 billion U. S. dollar, entrance exceeds 1 billion U. S. dollar, exceed 100 million U. S. dollar outlet. Increase by from 25% to increase to 2020 50% of 1995. The expert foretells that abroad: Asia portion being occupied by in mould fabrication in the whole world, will from 25% to increase to 2020 50% of 1995. Chinese mould industry has been expanding by leaps and bounds, has formed east China and two big South China bases, and has expanded gradually arriving at other province. In 2020 (Shandong, Anhui, Sichuan) in 1996, mould manufacturing industry output value annual average growth 14% , grows by 25% in 2020. In 2020 our country mould output value is 45 billion RMB. The gross product place occupies the world the 3rd, exports a mould increases % pared to last year 336,800,000 U. S. dollar. But, contents low our country technology moulds already pile up in excess of requirement, very most support of accurate, plicated top grade mould imports. Every year the entrance mould exceeds 1 billion U. S. dollar. Exceed 100 million U. S. dollar outlet. Precise mould accuracy requires that 3 mu ms, largescale moulds require that 8000 satisfied kN agree well with model force injection machine request in 2 ~; The minitype mould needs the request satisfying the diameter 1 mm silent stock tube. At present, adopt quickcutting to produce a mould already being the general trend that the mould makes, a few moulds have produced a manufacturer in abroad, highspeed machine tool large area has substituted the electric spark machine tool, quickcutting has improved the mould efficacy greatly. Machine tool enterprise aims at mould manufacturing enterprises, some treating centres 60% all above of the machine tool producing a factory sells treating enterprise to a mould. The mould fabrication enterprise substituting the electric spark finish machining mould gradually in abroad has adopt quickcutting already monly , quickcutting has produced a mould already being the general trend that the mould makes gradually, has improved the mould efficacy and mass greatly. A
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