Development of procedures and modelling for gas turbine component repair

目前，在加拿大，航空航天和一些陆基工业（如发电）的燃气涡轮机部件的维修接近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2500万美元由于国内缺乏技术专长而分包给加拿大以外的国家。这个问题将在提案中得到解决，其中定向凝固和单晶部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提高加拿大工程师在燃气涡轮机部件的成本效益维修方面的技术知识。例如，CF-6发动机第一级涡轮机叶片的更换，热端部件的价值高达60万美元，提高技术和适当的维修计划将确保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，标准航空公司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，对其他铸造部件进行具有成本效益的维修将提高其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航空航天公司，一家长期从事维修业务的公司。布里斯托的产品组合与Standard Aero不同，因此更关注镍基高温合金的钣金和铸件修复，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，并涵盖了燃气涡轮机部件维修的广泛技术基础。对该计划的支持应确保加拿大公司在燃气涡轮机部件维修方面保持竞争力，并将能够从加拿大以外的公司寻求进一步的维修。这将导致增加业务，加拿大工程师的就业机会和HQP的在大学的培训。

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.