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INDUSTRY NEWS/行業新聞


GM China Begins Magnesium Alloy VSC Machine Trial 通用汽车(中国)启动镁合金立式挤压铸造设备试验


Te GM China Advanced Technical Center (ATC)


in Shanghai announced the operation of its Vertical Squeeze Casting (VSC) machine, the first in the world designed for developing next-generation magnesium castings. Tis marks a breakthrough in lightweight mate- rials research by USA-based General Motors. Te new technology will make it easier to manufacture


vehicle parts from magnesium, which is the lightest metal currently available for the mass production of automo- tive materials. A part made from magnesium alloy is 30% lighter than a part made from aluminum alloy. GM estimates a vehicle’s fuel economy will improve 7% for every 150-kilogram reduction in weight. Te VSC machine was jointly designed by GM’s


lightweight materials research teams in Detroit and Shanghai. It was built in collaboration with an equip- ment manufacturer in China. Designed to improve casting integrity through the application of high squeeze pressure during the casting process, its fully enclosed magnesium melting and transferring system can sig- nificantly improve the performance and quality of the castings. It maintains the molten metal surface essentially isolated from oxygen, which would otherwise produce oxide inclusions. “Te expected benefits of squeeze castings also mean we


can use castings to replace some forged components at lower cost,” said Jeff Wang, lab group manager for the materials research team at GM China Science Lab. “Our efforts to promote magnesium alloy applications will not only meet cus- tomers’ needs for better fuel economy and better performance at an affordable cost, but also take advantage of the ready avail- ability of magnesium in China.” China now accounts for more than 80 percent of global magnesium output. 


通用汽车(中国)先进技术中心(ATC)在上海宣 布立式挤压铸造设备的试运行,该设备是世界首个为 新一代镁合金铸件的研发而设计的。这标志着美国通 用汽车公司在轻质材料研究上取得了一个新突破。 新技术将使镁合金车辆零部件的制造更加容易, 镁是目前可用于大批量生产汽车部件的最轻的金 属。生产同样一个部件,用镁合金比铝合金轻30% 。通用汽车估计每减少150公斤的重量,车辆的燃 油效率将提高7%。


立式挤压铸造设备由通用汽车公司底特律和上海 的轻质材料研究组共同设计研发,与中国一家设备 制造企业合作生产。通过铸造过程中的高强度挤压 以提高铸件完整性的设计,完全闭合的镁合金熔融 和传输系统可以显著提高铸件的性能和质量。该设 备可以使金属液表面完全与氧气隔离,否则,将产 生氧化夹杂物。


“挤压铸件的预期效益也意味着我们可以用较低 成本的铸件代替锻件,”通用汽车(中国)科学实 验室的材料研究组组长Jeff Wang说,“我们在推 动镁合金应用方面的努力,将不仅满足客户对于燃 油效率及低成本、高性能的要求,也将提高中国现 在镁合金的利用率。”中国目前的镁产量占世界总 量超过80%。 


Stratasys Ltd., Minneapolis, USA, and Rehovot, Israel, a global provider of 3D printing and additive manufac- turing solutions, has entered into definitive agreements to acquire two privately-held U.S. companies, Solid Con- cepts Inc., Valencia, Calif., and Harvest Technologies, Belton, Texas. Solid Concepts is the largest independent additive


manufacturing service bureau in North America and a fast-growing partner to RedEye, Stratasys’ existing digital manufacturing service business. Te transactions are expected to be completed early in the upcoming third quarter. Stratasys plans to combine Solid Concepts and Harvest Technologies with RedEye to establish one


Stratasys to Form Additive Manufacturing Powerhouse Stratasys将建立增材制造工厂 美国明尼阿波利斯市的Stratasys公司和以色列的


3D打印及增材制造解决方案公司Rehovot,对两家 美国私有公司——加利福尼亚州巴伦西亚的Solid Concepts公司和德克萨斯州贝尔顿的Harvest Technologies公司的收购,目前已进入了签署最终 协议阶段。 Solid Concepts是北美地区最大的独立增材制


造企业,也是Stratasys 公司目前负责数字化制造业 务的RedEye公司的一个快速成长的合作伙伴。 交易预计将于第三季度初完成。Stratasys公司计划


该 June 2014 FOUNDRY-PLANET.COM | MODERN CASTING | CHINA FOUNDRY ASSOCIATION | 19


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