http://www.AdsaleCMJ.com/Publicity/lang-eng/MainPage.aspxCMJ Machine - What's HotAs a member of the group of "climate protection companies" in Germany, the Harting Technology Group attended the launch event of the German Chamber of Industry and Commerce's theme "Energy and Raw Materials" event lately held in in Berlin.Dr Frank Brode, Management Board Member for New Technologies at Harting, and representatives of the other member companies, had the opportunity to speak to Dr Philipp Rösler, the German Federal Minister of Economics and Technology, and Hans Heinrich Driftmann, President of the German Chamber of Industry and Commerce, at the event.In his opening speech, Dr Rösler set out the federal government's concept for a change in energy policy which is based on the key areas of extension of the energy network, construction of new power plants, expansion of renewable energies, an increase in energy efficiency and a strengthening of research capabilities.Dr Brode commented, "This concept has a European dimension and requires the support of society as a whole. In this respect, Harting is well positioned thanks to its sustainable energy concept and research on new technologies to replace vital raw materials and it will make a significant contribution.""Climate protection companies" are awarded for their outstanding performance in terms of operational energy efficiency by the German Chamber of Industry and Commerce under the climate protection, energy efficiency and innovation partnership with the Federal Environment Ministry, its climate protection initiative and the Federal Ministry of Economics.http://www.adsalecmj.com/Publicity/MarketNews/lang-eng/article-120558/Article.aspxFour US associations will jointly host the second edition of The MFG Meeting (Manufacturing for Growth) from March 8-11, in Orlando, Florida, the US.These four associations are the AMT (the Association for Manufacturing Technology), AMTDA (the American Machine Tool Distributors' Association), NTMA (the National Tooling and Machining Association) and PMA (the Precision Metalforming Association). Collectively representing a cross-section of the industry, they will combine their annual meetings into The MFG Meeting to pursue the common goal of building sustained US economic growth by strengthening the country's manufacturing sector.Together, the four associations comprise more than 4,000 small- and medium-sized manufacturers from all 50 US states that provide products for the aerospace, automotive, construction, energy, medical and many other industries in the country and abroad. It is said that by sharing resources, The MFG Meeting provides an opportunity for more than 700 top manufacturing executives to exchange best practices as the industry seeks to reassert and expand its US economic footprint.A slate of speakers will be featured at the second edition of The MFG Meeting. They range from a keynote from Super Bowl winning coach and NASCAR team owner Joe Gibbs, to sessions that cover economics, marketing, innovation and government relations.http://www.adsalecmj.com/Publicity/MarketNews/lang-eng/article-120559/Article.aspxAsian countries are not just markets of machine tools but are also, increasingly, becoming competitors for the traditional machine tool supplying countries of the West.Taiwan emerges as world's third largest machine tool supplierAccording to the Taiwan Association of Machinery Industry (TAMI), the island's machine tool exports will reach or even exceed the level of US$4 billion in 2011, ousting Italy from its position as the world's third largest exporting nation behind Germany and Japan. Speaking at a presentation of Taiwan products at EMO Hannover 2011, TAMI chairman Hsu Hsiu-tsang stated that Taiwan's machine tool exports would grow by 75% to US$7 billion by 2015.Taiwanese exhibitors at the show, which formed a large contingent of 150 companies, told CMJ that the island's outlook for machine tools is bright.Fan Te-an, who looks after the economic relations at Taiwan's representation office in Germany, recalled the long-term investment planning by Taiwan's machine tool industry in the past 40 years, thus helping build an effective and extensive supply chain. He also referred to the Economic Cooperation Framework Agreement (ECFA), signed in 2010 between Taiwan and China, which opened up the mainland's huge market for Taiwan.Taiwanese companies are closely monitoring the rise of both China and India which are not only markets but also competing suppliers. Jimmy Chu of the Fair Friend Enterprise Group did not mince words when he admitted that Taiwan's machine tool industry faces fierce competition from the two Asian juggernauts; however, he added, that Taiwan has "great potential for development" because of its traditional emphasis on technical precision and marketing. Indeed, he added that Taiwan's machine tool products are as good as the products from Japan while the former's prices are much lower than those of the latter. China is also becoming a supplier Taiwan exhibitors used the EMO to launch their new CNC lathes as well as engine lathes and spindle machines while their Chinese counterparts also offered interesting products. The Dalian Machine Tool Group (DMTG), one of the biggest machine tool manufacturers of CNC lathes in China, showcased a CNC heavy lathe for 5 ton weight pieces. DMTG also exhibited heavy CNC lathes with 800mm and 500mm diameter and a top width of 2,000 mm and 1,500mm. The machine was equipped with four-fold turrets and a user-friendly CNC control system of FAGOR 8055 and FANUC 0i TC with manual guide. JW Machinery from China showcased reasonably-priced lathes for productive cutting. JA Machinery exhibited, among others, a small CNC cyclical lathe SK 6136H/750. This machine is equipped with a CNC control 802 DSL. It has a diameter of 360mm and a turning length of 750mm. Additionally, the company presented a drawing spindle machine with a diameter of 850mm and a width of 3,000mm. Chinese investors pick up European corporate nuggets European companies have become interesting targets for Chinese investors who are looking to pick up corporate nuggets, particularly, in the machine tool sector. Big traditional companies such as Schiess, Waldrich, Coburg or Wohlenberg have been acquired by the Chinese. Cash-strapped German companies hope to get better access to the Asian market through Chinese investors who, in return, are interested in getting the latest machine tool technology. The German companies thus acquired also want to safeguard their independence.But not all German companies want a tie-up with foreign investors. Some German companies have already voiced their misgivings against foreign capital. However, Torsten Brumme, Managing Director at Schiess was telling journalists at Hannover that he hoped to prove that the acquisition by the Chinese company Shenyang Machine Tool Group had not only rescued Schiess from extinction but the investment had also considerably improved Schiess' future chances. Schiess had in the past specialized in large machine tool products while the Chinese parent company in Shenyang produced small to medium-sized machines for the Chinese market. "The new processing centers have technologically upgraded the medium segment," said Mr Brumme, who hopes to foray into new markets of Asia, America and Europe. Another machine tool manufacturer Waldrich Coburt has been producing new machine tools such as vertical lathes for its Chinese parent company Beijing No.1. "These are produced exclusively in China and for the Chinese market," Hubert Becker, the company's Managing Director, explained at the EMO. In this manner, the company supported the parent company with its knowhow without, however, losing its own hi-tech competence. India banks on its own machine tool industry India has become a darling of many Western companies, particularly Germany which sees windfall business in that country's modernization plans. According to India's apex industry group, the Indian Machine Tool Manufacturers' Association (IMTMA), India's machine tool market attained a production volume of US$788 million in 2010/11. However, the total consumption was around US$2.2 billion, with imported machines valued at US$1.5 billion accounting for the difference. India wants to offset this imbalance in the future, the IMTMA president Vikram Sirur told journalists at the EMO."We want to reduce the share of imports to 50% by the year 2015, and also build our own machines in the hi-tech segment," Mr Sirur maintained. Indeed, the country wants to concentrate on augmenting exports, although India would first like to try to meet the "exploding demand" from its own production. The Indian government financially supports this project.India's share of exports is expected to rise. S.N.Mishra, Deputy Chairman and President of Bharat Fritz Werner Limited (BFW) emphasized that Indian machine tools were already being used worldwide, and expected exports to further increase in the coming years.BFW, a leading machine tool manufacturer, has been exporting its machines since 1979 to Germany, Britain, Singapore, Indonesia and Malaysia. Since some years, BFW has also been operating a subsidiary in Germany called the Bharat Fritz Werner GmbH, and has entered into a strategic alliance with Spinner aimed at complementing the supplies by BFW. However, India needs to increase its productivity in the machine tool sector, according to many German and Indian experts. The IMTMA says the Indian machine tool industry is keen to enhance productivity by using the latest technology and automation.Japan's machine tool industry bounces back after devastation Japanese machine tool exhibitors at the EMO appeared bullish despite the financial crisis and the earthquake-cum-tsunami devastation in the country. Motohiko Yokoyama, Chairman of the Japanese Machine Tool Builders' Association (JMTBA) was happy over the recovery in the machine tool industry and said that he was looking at the future with hope. In the first half of 2011, domestic manufacturers received orders valued at 6.58 billion euros, up 53% over the year earlier period. In July alone, the industry had received orders worth 1.07 billion euros. Mr Yokoyama interpreted this as a "clear sign" of a strengthening demand for Japanese machine tools.Japan's machine tool industry has also benefited from China's growing demand. Japanese machine tool manufacturers had received orders from China worth some 2.03 billion euros until June 2011. The share of exports to China at 70% remained constant compared to the previous year. Asia with 70.9% is the leading market of Japan.The JMTBA expects a total order volume of 12.7 billion euros for the entire year 2011, with domestic demand amounting to some 3.9 billion euros.http://www.adsalecmj.com/Publicity/Focus/lang-eng/article-4294/Article.aspx在液壓件行業和減速機製造行業大量製造擺線轉子泵、擺線液壓馬達和擺線針輪減速機等機械裝置。其中的擺線針輪齧合副是擺線全液壓轉向器、擺線液壓馬達的核心元件。由於其體積小、扭矩大，單位重量功率大等顯著優點而在自行走式工程作業車輛，如農業機械、工程機械、叉車等領域廣泛應用，擺線針輪減速機更是廣泛應用在紡織印染、輕工食品、冶金礦山、石化等行業。擺線輪是擺線針輪齧合副的關鍵零件，加工精度要求較高，加工工藝比較複雜，長期以來是制約液壓件行業、減速機製造行業的一大難題。強力成形磨削是加工擺線輪齒廓曲面的好辦法擺線泵（馬達）結構示意圖擺線輪是擺線輪減速器和液壓馬達的關鍵零件，其加工精度直接影響到整套機器的性能。長期以來，由於國內缺少數控強力成形磨床設備，擺線輪齒廓曲面的加工大部分是通過插齒機、慢走絲線切割、銑刀銑的方式來實現，由於擺線輪齒廓形狀複雜、加工製造難度大，因以上加工方法效率低、精度低、齒面粗糙度差，滿足不了批量生產的要求，直接影響減速器和液壓馬達、泵的性能。隨著機械加工業的飛速發展，高速、重切、高精度的加工技術逐步取代常規的加工方法。具有特殊型面要求的擺線輪齒廓表面精加工，在國外廣泛採用數控成形磨削技術，這種磨削方法與展成法擺線磨齒加工相比具有明顯的優越性。該加工方法是利用數控強力成形磨床，運用成形砂輪修整技術修整出擺線輪單齒廓曲面形狀，再通過回轉分度機構對擺線輪工件進行強力緩進給成形磨削，達到直接成形齒廓。具有效率高、精度高、曲面粗糙度好的特點，因為運用了數控控制可以實現一人多機的管理方式，滿足批量生產的需求，更是提高了產品性能。可用於擺線輪磨削的MKL7132×8數控強力成形磨床將砂輪修整成上圖齒廓形狀進行成形磨削MKL7132×8數控強力成形磨床左圖是杭州機床集團為擺線輪磨削加工而專門開發的MKL7132×8擺線輪數控強力成形磨床。該機床的主機結構採用公司具有自主知識產權的立柱中腰移動式結構，該結構有一個最大的優點是：主軸磨削時位置與橫向導軌等高，可以保證強力磨削時所必須具有的磨削動態剛性，且整個移動部件（即立柱與磨頭）的重心在橫向導軌構成的平面附近，保證機床移動及進給穩定性。在工作臺的右側安裝砂輪修整器或金剛筆座，在工作臺的左側安裝夾具及工件。在磨頭上安裝有高壓冷卻砂輪衝洗裝置。機床磨頭功率為17或30KW，滿足了強力磨削的要求。機床控制採用西門子802D/840D數控系統，控制縱向軸、垂直軸、橫向軸的進給運動、A軸及控制磨頭伺服主軸電機。機床採用進口金剛滾輪，並搭配高剛性滾輪修整器，使修整砂輪齒形面高效而精確，對齒面齧合度和磨削效率的提高有了可靠保證。同時，機床帶有自動平衡砂輪裝置，可以有效去除因砂輪本身和修整後所造成的砂輪不平衡量，在提高磨削精度的同時保證其表面質量。還可以實現砂輪修整量自動補償，保持工件加工尺寸一致性，提高加工精度和互換性。磨頭主軸和滾輪主軸均採用具有自主知識產權的低壓油霧氣封裝置，防止高壓冷卻液進入主軸系統，有效保證了主軸精度和軸承長壽命。磨頭體採用熱平衡裝置控制主軸熱伸長，保證了橫向磨削精度。機床自動化程度和可靠性高，在磨削過程中，除工件的裝卸及測量外，期間均為自動完成，提高了生產效率，減少了操作人員的勞動強度。幾年來，這種機床已批量提供給國內液壓件行業和減速機製造行業使用，效果良好，從而受到這些行業的歡迎。擺線輪的砂輪成形修整裝置及專用夾持裝置砂輪根據擺線輪齒廓形狀進行成形修整，砂輪修整方式採用臺式金剛滾輪修整，通過垂直進給軸和伺服主軸的聯動，實現砂輪修整補償及砂輪的恆線速。砂輪安裝方式：單片砂輪安裝-粗精磨削。工件定位方式：芯棒定位，數控分度盤（A軸）分度定位。工件裝夾方式：一次3-5件疊加裝夾，液壓或氣壓頂緊。整個擺線輪總共6齒，分2次加工。加工分緩進給粗磨和快速往復精磨。往復精磨前進行砂輪修整。磨削後粗糙度達到Ra0.8μm。加工節拍估算：（具體加工工藝根據實際情況進行調整）以此擺線輪為例：一次加工5件（毛坯單邊餘量為0.2mm左右）計算。擺線輪的磨削加工表將研究開發定子環的內輪廓成形磨削在液壓件行業，需要對液壓泵定子環的內輪廓進行精密機械加工。德國ELB磨床公司製造的液壓泵定子環的內輪廓成形磨床長期以來，這種內輪廓的加工也是個難題，國外象BLOHM、ELB等公司在成形磨床上使用一種專用內磨削裝置可以對內輪廓進行成形磨削。這種專用內磨削成形裝置，把磨頭裝置、動力傳送以及冷卻液供應裝置都裝在被加工工件的內輪廓中，也就是說將專用磨頭伸入工件內進行成形磨削。採用這種磨削加工方法，定子環內輪廓的加工具有精度高、輪廓度高、金屬磨除率高的優點。如上圖所示，ELB公司的這台機床採用人造混凝土床身，X軸和Z軸為靜壓導軌，在機床工作臺上裝有2個內磨削臂，並設計使用CBN砂輪。橫向拖板上帶有一個專門設計的分度頭架，高分辨力空心軸旋轉編碼器直接安裝在工件軸上，對傾斜定位使用一個液壓夾緊隔板。一個可收縮的徑向輪廓心軸確保隨之用一隻液壓筒軸向夾緊成一疊的工件的對準。一隻滾輪修整附件允許把陶瓷CBN砂輪用於在第一個磨削臂上進行粗磨，精磨操作由安裝在第二個磨削臂上電鍍CBN砂輪完成。磨削過程用高壓溫控油進行冷卻，油在一個超精過濾器中清潔。一疊8只葉片100mm厚的轉子環的和0.25mm餘量的加工時間大約需10分鐘。國內液壓件行業所需要的這種機床目前都依賴進口，如江蘇鎮江液壓件廠曾進口了德國BLOHM公司的機床。隨著成形磨削技術的成熟，如國內用戶有需求，我們可以專門進行研製，實現對工件內輪廓的成形磨削加工。我們將深入研究磨削工藝，盡力為用戶提供高效成形磨床。http://www.adsalecmj.com/Publicity/ePub/lang-eng/article-8072/Article.aspxOperating under the Hanjiang Machine Tools Co Ltd (HJMTC), HJMTC Ball Screw and Guideway Branch has been a leading domestic manufacturer of rolling functional parts in China, having a market share of almost 40% in the country for both ball screws and linear guideways. CMJ recently talked to Yan Huqin, a senior engineer in China and head of the branch.CMJ: Could you briefly introduce your company to us?Mr Yan: After two decades of development, now we have 15,000sq m of area for production, and our constant temperature area is 5,000sq m. We have more than 150 units of metal cutting machines as well as different types of sophisticated, large-sized and unique equipment. We are equipped with Swiss RG-2000 CNC thread grinders and Japanese-made circular arc tooth profile measuring machines. In addition, we possess self-developed 5m laser measuring machines as well as 3m dual frequency laser dynamic measuring machines developed by Shanghai University of Science and Technology. All these make us a leader in the dynamic measurement of ball screws in China.Furthermore, we implement computerized management (personnel, production and sales) and with CAD/CAM capabilities, we have established complete process and quality assurance systems for the processing of precision ball screws and guideways.As far as our products are concerned, our HJG-S series precision ball screws have for many years been recognized as "products with satisfaction from domestic users" by China Association for Quality (CAQ) and the "national CNC machine tool users' committee". They are also recommended to users as quality products that can substitute imported products.We strive to develop ourselves into a first-class manufacturing base of rolling functional parts in China. We are ISO9002-certified. We are also the base of Shaanxi's provincial research center for the research and development of series products of rolling functional parts.CMJ: China has long been relying on imports for high-end ball screws. How is Hanjiang doing in this market segment?Mr Yan: Hanjiang has been putting in a lot of efforts in developing auxiliary equipment and accessories that can substitute imported products used in equipment for the industries of automotive engine manufacturing, tools and measuring instruments, aviation, metallurgy and turbines. For instance, we have been mass producing heavy-load ball screws with uniform loading design. They have been delivered to users as substitutes of imported products. Another example is the 5m long hollow ball screw model GQ70×20×4680×5245, which is for use in gantry-type machining centers. I can say we have made outstanding achievements in offering products that can substitute imported ones in the high-end ball screw market segment in China.CMJ: What plans does Hanjiang have for the 12th Five-year Plan period?Mr Yan: Our plans for the 12th Five-year Plan is built on the foundation we have established with our present production factory and machinery upgrade progress. We are planning to acquire new land to build an industrial zone for rolling functional parts so that we will be able to catch up with the need for industrialization of these parts. We will also largely invest in CNC processing equipment and strive to expand our production scales in ball screws and linear guideways. Furthermore, we will set up or enhance our precision measuring department and performance testing laboratory. It is to ensure that we will possess complete technology and equipment in precision measurement, holistic performance testing and reliability testing. Our target is that by the end of the 12th Five-year Plan period, we will have the capacity to produce 500,000 sets of ball screws and 200,000m of linear guideways per year.http://www.adsalecmj.com/Publicity/Interview/lang-eng/article-468/Article.aspx