Development of procedures and modelling for gas turbine component repair

目前，为航空航天和一些陆上工业（如发电）维修燃气轮机部件在加拿大是一项接近10亿美元的业务。其中约2亿美元用于更换定向固化（DS）和单晶（SX）组件，约2500万美元由于加拿大国内缺乏技术专长而分包给加拿大境外。这个问题将在提案中解决，其中定向固化和单晶组件的修复是研究的主要部分。总的来说，该提案的主要目的是增加加拿大工程师的技术知识，使他们能够经济有效地维修燃气轮机部件。例如，CF-6发动机第一级涡轮叶片的热端部件更换价值高达60万美元，技术的提高和合适的维修方案将确保该业务保持在加拿大境内。这不仅增加了知识，而且提高了加拿大公司在全球维修业务中的竞争力。在这种情况下，Standard Aero是维修业务的主要参与者，但仍然需要将复杂的DS和SX部件送到加拿大境外进行维修。此外，对其他铸造部件的成本效益维修将增加他们在维修业务中的竞争力。我们研究项目的另一个合作伙伴是布里斯托尔航空航天公司，一家长期从事维修业务的公司。Bristol的产品组合与Standard Aero不同，因此更关注镍基高温合金的金属板和铸件修复，以及涡轮热端钛部件的修复。因此，这些公司采用的两种方法是互补的，并涵盖了维修燃气轮机部件的广泛技术基础。对该计划的支持将确保加拿大公司在燃气轮机部件维修方面保持竞争力，并且能够从加拿大以外的公司寻求进一步的维修。这将增加业务，为加拿大工程师提供就业机会，并在大学培训HQP。

Currently the repair of gas turbine components for aerospace and some land based industries such as power generation, is close to a $1 billion business in Canada. Of this figure some $200 million is taken up with replacement of Directionally Solidified (DS) and Single Crystal (SX) components and some $25 million sub-contracted outside of Canada due to lack of technical expertise within the country. This issue will be addressed in the proposal where the repair of directionally solidified and single crystal components forms a major part of the research. Overall the main thrust of the proposal is to increase the technical knowledge of engineers within Canada relative to cost-effective repair of gas turbine components. With hot end components being valued at up to $600, 000 for the replacement of the first stage turbine blades on the CF-6 engine for example, increased technology and suitable repair schemes will ensure that the business is kept within Canada. This not only leads to increased knowledge, but also increased competitiveness for Canadian companies in the worldwide repair business. In this context, Standard Aero is a major player in the repair business, but still has to send sophisticated DS and SX components outside of Canada for repair. Furthermore, cost-effective repairs on other cast components will increase their competitiveness in the repair business. Our other partner in the research program is Bristol Aerospace, a company having a long time involvement in the repair business. Bristol has a different product mix from Standard Aero and is thus more concerned with sheet metal and casting repair of Ni-based Superalloys and also repairs of titanium components for the hot end of the turbine. The two approaches used by these companies are thus complimentary and cover a wide technology base for the repair of gas turbine components. Support for the program should ensure that Canadian companies remain competitive in gas turbine component repair and also will be able to solicit further repair from companies outside Canada. This will lead to increased business, jobs for Canadian engineers and the training of HQP's at the University.