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这是澳大利亚悉尼市Norton公司的文章。文章说,Norton公司所谋求的技术上的重要突破可能导致在本世纪内许多金属件的精加工以及零件的制造工艺发生革命性的变化。文章认为,尽管砂轮和砂带用作金属的精加工已有50年历史,但磨床的应用在许多方面仍处于幼年时期。这种情况即将发生变化。一二年内砂轮所能承受的应力将是现有砂轮的三倍,这种超级磨料采用细丝和人工培育的晶粒。粘结方法将继续改进。到1985年,这种砂轮的磨粒将有严格规定的几何形状,砂轮体内各处的特性将是恒定的。第一批这类新型的超级砂轮已经问世,属于Norton公司新专利的氧化锆刚玉晶粒(zirconia alumina crystals)已显示出极高的金属切除能力。此外Norton公司的CBN砂轮工作时两次
This is an article from Norton Company in Sydney, Australia. The article said Norton’s technological breakthroughs could lead to a revolution in the finishing of many metal parts and the manufacturing of parts over the century. The article argues that although grinding wheels and belts have been used for metal finishing for over 50 years, the use of grinding machines is still in its infancy in many ways. This situation is about to change. The stress that a wheel can withstand in one or two years will be three times that of an existing wheel, which uses fine filaments and artificially grown grains. Bonding methods will continue to improve. By 1985, the abrasive grains of such a grinding wheel will have a well-defined geometry and the properties throughout the grinding wheel body will be constant. The first of these new types of super-grinding wheels has come out and zirconia alumina crystals, part of Norton’s new patent, have shown very high metal removal. In addition Norton’s CBN grinding wheel worked twice