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Global aerospace industry risks

Balcerzak T.

Zeszyty Naukowe. Transport / Politechnika Śląska

2019

z. 102

05--27

The global Aerospace industry is expected to improve in 2018 as its revenue is predicted to rise by 4.1% , doubling last year’s 2.1% growth. The recovery of global gross domestic product (GDP), stable commodity prices, and increased passenger travel demand are likely to ramp up growth in the commercial aircraft sector in 2018. This article reviews the performance of the aerospace industry in 2017 and 2018 and speculates its growth in the incoming years. It also outlines the performance across the major aerospace markets and discusses trends that will impact the industry. The article forecasts the mergers and acquisitions activity in 2018 that lays the foundation for further growth in this space. Key findings are: • Commercial aircraft sector revenues are expected to grow by 4.8% as production levels are likely to be robust while the defence sector revenues are likely to record 3.6% growth as the US defence budget recovers after experiencing multi-year declines. • The spiralling demand for passenger travel is driving commercial aircraft production and is responsible for the record high backlog of 14,215 units at the end of 2017. • In 2018, global Mergers and Acquisitions (M&A) activity is expected to remain strong in the aerospace sector, being driven by pricing pressures from aircraft OEMs and their expansion of high-margin aftermarket services. This has pushed suppliers to consolidate for scale and cost-effectiveness.

Fretting-wear of constructional steel 1045 after laser modification of surface

Shalapko Y. I., Kaplun V. G.

International Journal of Applied Mechanics and Engineering

2002

Vol. 7, Spec. is

425-431

One from major problems of contact interaction of surfaces is the loss of a integrity of constructions in joints at the fretting-processes. As a rule, the fretting-wear has the latent character that is rather dangerous to responsible joints of airplane and space technology. The use of laser treatment of a surface can guarantee fretting-resistance within of the certain durability and safety factor medium carbon steel in joints. The laser processing of materials is especially favourable because of the localization and it allows to treat extremely those places, which are subjected to fretting-corrosion. Besides, laser exposure of coatings allows essentially to change properties of a surface and to prepare it for perception of alternating signs tangential loads.