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Cryogenic Machining Systems (CRYOSIS)

低温加工系统 (CRYOSIS)

基本信息

批准号：
EP/K503654/1
负责人：
Stephen Newman
金额：
$ 28.56万
依托单位：
University of Bath
依托单位国家：
英国
项目类别：
Research Grant
财政年份：
2012
资助国家：
英国
起止时间：
2012 至无数据
项目状态：
已结题

来源：
https://gtr.ukri.org/projects?ref=EP%2FK503654%2F1
关键词：
Cryogenic Machining Systems CRYOSIS

项目摘要

The machining of high performance materials is continuing to grow in the UK, particularly as a result of the increase in the high value manufacturing sectors, which include aerospace and medical industries. The aerospace market alone is worth £23billion. The major issues at present are the inherent problems of machining materials such as titanium alloys, which are extensively used in the aerospace sector. Typically, Airbus use in excess of 250 tonnes of titanium to produce components for the A380. In fact, at present the major bottleneck for the aerospace industry is the machine shop, which cannot produce components quickly enough, because of the difficulty of machining such materials. CRYOSIS will develop novel machining solutions and strategies, based on solid scientific foundations allowing for these types of materials to be machined faster and with reduced surface roughness, increased tool life and enhanced machinability, whilst also providing significantly reduced environmental impacts.Specifically, the project will investigate and develop cryogenic solutions for the next generation of machining of high performance materials, particularly for finish machining of near-net shapes. Machining of such materials presents a number of inherent challenges, which are at present not addressed as identified by the industrial partners. Using a cryogen in place of conventional coolants will allow for the heat generated at the cutting interface to be dissipated faster, leading to increased tool life and reduced surface roughness. In addition, it is envisaged that material removal rates can be increased by reducing rough machining stages, leading to positive impacts on component throughput.If acceptable machining characteristics can be obtained using the CRYOSIS process, the machining of high performance materials, particularly for the finish machining of near net shapes will create a revolutionary change in manufacturing performance, cost and provide a viable enhancement to the present state of the art. In addition, the design of a retrofittable cryogen delivery solution for a wide range of available machine tools provides a direct cost based impetus for improving machining of such materials, which at present does not exist.

高性能材料的加工在英国继续增长，特别是由于包括航空航天和医疗行业在内的高价值制造业的增长。仅航空航天市场就价值230亿GB。目前的主要问题是钛合金等在航空航天领域广泛使用的加工材料的固有问题。通常情况下，空客使用超过250吨的钛来生产A380的部件。事实上，目前航空航天工业的主要瓶颈是机械车间，由于加工此类材料的难度，无法足够快地生产零部件。CRYOSIS将以坚实的科学基础为基础，开发新的加工解决方案和策略，使这些类型的材料能够更快地加工，并降低表面粗糙度，延长刀具寿命和增强加工性，同时还将显著减少对环境的影响。具体地说，该项目将研究和开发用于下一代高性能材料加工的低温解决方案，特别是近净形状的精加工。这种材料的加工带来了一些固有的挑战，这些挑战目前没有得到工业伙伴所确定的解决。使用制冷剂代替传统的冷却剂，将允许在切割界面产生的热量更快地散失，从而延长刀具寿命并降低表面粗糙度。如果使用CRYOSIS工艺可以获得可接受的加工特性，那么高性能材料的加工，特别是近净形状的精加工，将在制造性能和成本方面产生革命性的变化，并为目前的技术水平提供可行的改进。此外，为各种现有机床设计可改装的冷媒输送解决方案，为改进此类材料的加工提供了基于成本的直接动力，而目前还不存在这种动力。