Cryogenic Machining Systems (CRYOSIS)

高性能材料的加工在英国持续增长，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230亿英镑。目前的主要问题是在航空航天领域广泛应用的钛合金等材料的加工本身存在的问题。通常，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，由于加工这类材料的难度，机械车间无法足够快地生产零部件。CRYOSIS将开发新的加工解决方案和策略，基于坚实的科学基础，允许这些类型的材料更快地加工，降低表面粗糙度，增加刀具寿命和增强可加工性，同时还提供显着减少对环境的影响。具体来说，该项目将研究和开发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。这种材料的加工提出了许多固有的挑战，目前还没有解决的工业合作伙伴确定。使用冷冻剂代替传统冷却剂可以使切削界面产生的热量更快地消散，从而延长刀具寿命，降低表面粗糙度。此外，可以设想通过减少粗加工阶段来提高材料去除率，从而对部件吞吐量产生积极影响。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，成本方面产生革命性的变化，并为目前的艺术状态提供可行的增强。此外，为各种可用机床设计可改装的冷冻剂输送解决方案，为改进此类材料的加工提供了直接的基于成本的动力，这在目前还不存在。

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.