As the core power component of aircraft, the exhaust hood of aircraft engine plays an important role. At the same time, it can protect the engine and surrounding pipeline accessories, including engine, circuit, oil circuit, braking system and transmission system, so as to fully protect the normal operation of the aircraft.
Practical problem
1. The aircraft exhaust hood is made of titanium alloy. Several typical failure forms of titanium alloy may occur in aviation engineering applications, including fretting wear, fretting fatigue, hot salt stress corrosion, hydrogen embrittlement, embrittlement of low melting point metal and contact corrosion.
2. The air intake hood of aircraft engine has the characteristics of different groove shapes and porous positions on all sides, and its structure is complex. It needs to detect fretting wear, and it needs to be accurate in every place. At the same time, the processing and testing of geometric modeling needs accurate data. For the cross-section area of airfoil, alignment, concave convex and undulating places, it needs to carry out three-dimensional measurement in a nondestructive manner, This is a challenge to the traditional measurement methods.
Physical drawing of aircraft exhaust hood
Holon solutions
According to the characteristics of the workpiece and the needs of customers, Hualang 3D technical engineers put forward solutions. They use the handheld laser 3D scanner Holon B71 to scan the undulating surface in fine mode, with an accuracy of up to 0.02mm. The single line deep hole mode scans the hole position, which can easily obtain high-precision complete 3D data, with simple and fast operation and high efficiency.
Import the scanned three-dimensional data into the comparison and detection software, conduct comparison and detection analysis with the original CAD model, and obtain a simple and understandable comparison and detection report to meet the needs of customers.
STL drawing of aircraft exhaust hood
Comparative inspection diagram of aircraft exhaust hood