Development of procedures and modelling for gas turbine component repair

目前，为航空航天和发电等一些陆基行业维修燃气轮机部件，在加拿大的业务规模接近10亿美元。在这一数字中，约2亿美元用于更换定向凝固(DS)和单晶(SX)部件，约2500万美元由于加拿大国内缺乏技术专长而在加拿大境外分包。这一问题将在提案中讨论，其中定向凝固和单晶部件的修复构成研究的主要部分。总体而言，该提案的主旨是增加加拿大境内工程师在具有成本效益的燃气轮机部件维修方面的技术知识。例如，更换CF-6发动机第一级涡轮叶片的热端部件价值高达60万美元，增加的技术和适当的维修方案将确保业务保留在加拿大境内。这不仅增加了知识，还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，标准航空是维修业务的主要参与者，但仍然必须将复杂的DS和SX部件送到加拿大以外的地方进行维修。此外，对其他铸件进行具有成本效益的维修将增加它们在维修业务中的竞争力。我们在研究项目中的另一个合作伙伴是布里斯托尔航空航天公司，这是一家长期从事维修业务的公司。布里斯托尔拥有与Standard Aero不同的产品组合，因此更关注镍基高温合金的板材和铸造修复，以及涡轮机热端钛部件的修复。因此，这些公司使用的两种方法是互补的，涵盖了修复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，并能够从加拿大以外的公司获得进一步的维修。这将带来更多的业务，为加拿大工程师提供工作机会，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.