In their study ‘‘Cutting Tools 2014’’, Dedalus Consulting, New York analyses the global market for cutting tools, making prognoses for the years 2012–2018 as shown in . According to the statistic, the world market volume of 2013 was 16.33 billion US-Dollars. The most strongly represented technology is milling with 39%, closely followed by turning with 30%. Generally, the annual growth is assumed to be 4–5%, however milling and drilling are expected to show slightly higher growing rates than turning and other cutting technologies. Prognoses assume the highest growing rates to be in superhard cutting materials such as ceramic, PcBN and PCD, which together already accounted for 19% of all cutting materials used in 2013. The forecast of a growing rate of 10.4% until 2018 puts PCD in clear lead. The main reasons for changes on the tool market are changes of workpiece materials as well as modified cutting parameters.
In, H. Voggenreiter, chairman of VDI-GME affirms: ‘‘Over 60% of all product innovations are based on new or improved materials as well as on methods in manufacturing and processing of those.’’ This becomes especially evident in traffic engineering where there is a trend towards weight reduction, a necessary progress made possible by increasing the use of light alloys based on Al, Ti, and Mg. Moreover, this trend towards lightweight designs also triggered the dynamic advancement of new grades of highstrength as well as super high-strength steel. Apart from their improved mechanical properties, they serve to reduce the weight by reduced volumes. A third group of materials used for lightweight designs are composite materials which enable to combine the seemingly contradictory requirements of high tensile strength and low weight as in for instance carbon fibre-reinforced plastic (CFRP). Due to environmental regulations, aircraft engines have shown an increase in combustion temperatures and pressures, the result of which being an increased demand for improved high-temperature materials. Common solutions include improved superalloys based on Ni on one hand, and intermetallics such as TiAl and NiAl on the other. Ceramic matrix composites (CMC) act as a third possibility with considerable potential for weight reduction together with high-temperature resistance. In theory, the list could be continued indefinitely.
本文由桑尧热喷涂网收集整理。本站文章未经允许不得转载；如欲转载请注明出处，北京桑尧科技开发有限公司网址：http://www.sunspraying.com/
|
