Electron beam welding

In today's era, stainless steel "target=_blank> stainless steel, which is specially made for aviation gas turbines, must be operated strictly at specific temperatures. This type of super heat resistant stainless steel "target=_blank> stainless steel is very resistant to heat cracking. Sensitive, so the parameters of the entire process, including pre-weld and post-weld heat treatment, must be rigorously evaluated and backed up. The vacuum chamber electron beam welding machine properly meets this requirement.

Propulsion tank and propulsion system

Propulsion tanks, fuel management systems, nozzles, stage tanks, microporous membranes, injection components, inlet valves and outlet valves; all titanium alloy components are an important part of the current and future aerospace platforms. Due to the subtle innovations of each component, the processing limits and accuracy requirements are economically viable and close to flawless solutions. The problem we face now is that under the conditions of manual monitoring, people can no longer accurately observe the weld seam at the optimal welding speed, so it is very important to use the equipment control process. Backscattered electron observation systems have gained worldwide acceptance as a standard. The methods used to collect, process, and use information during the welding process are often critical issues. Uniform standards are used to achieve the joining and pressurization of components to meet the more precise processing specifications not seen in modern aviation aircraft, making the weld seams less visible to the naked eye. There is currently a titanium component made with a stamped base technology that is completed on a lathe. Scanning with electron beam technology not only accurately observes the joint location, but also reflects different titanium alloys that can be visually observed.

A typical product that requires this precision machining and electron beam welding technology is the titanium satellite track groove. Accurate seam positioning and chiseling from the position of the internal joint seam has become a difficult problem for engineers, and the only solution is long-focus electron beam focusing and precise control over this length. In this way, it naturally revolves back to the information source of the digital control system - backscattered electrons. Sensitivity of the sensor, high-precision electronic number focusing, precise bias, software technology development level and computer branch control are all important factors for the operator to achieve the best technical results.

Electron beam

In optical microscopy, the use of electrons instead of visible light has great advantages in image quality and information value, reliability and utilization. First, the magnification using electron beam amplification can reach 20,000x, while the magnification using visible light is only 1000x. The characteristics of the scattered electrons are: using the elasticity of the electron nucleus interaction on the surface of the object to be inspected, the angle of the scattered electrons can reach 180 degrees, but the average scattering angle is 5 degrees. In this way, the atomic number Z of a small portion of the scattered atoms is strongly changed, and in this way, the raw materials can be compared and compared. This is the so-called atomic number feature comparison. This is why a test board is required in an electron beam welding machine to collect scattered electrons. Software and CNC systems can use this accurate information to control welding parameters.

Beam control

The collected information shows, in digital form, the relationship between the sampled samples of the elastic scattering of the electron beam and the high-energy electrons, the sampled samples of the sub-electron inelastic scattering, and the energy conversion between the sampled samples of the electromagnetic radiation. Each energy source can be detected and measured with a dedicated sensor. The absorbed beam current can also be detected and measured. Various electronic amplifiers use digital CRT display signals to create important signal strength profiles. Operators use high-resolution CRTs as their monitoring devices, while digital signals are transmitted to the CNC system for loop control monitoring and feedback. Today, wireless sensors are placed in a vacuum working chamber for automatic beam alignment. The patent achieves 800% over the best manual operation in terms of weld accuracy. Therefore, the technology has higher reliability, obvious advantages in thermal energy input control, and low deformation in the area of ​​thermal energy input and thermal energy influence.

In the welding process, high-speed electron beam current deviation is used to make independent porous, and the electron beam deviation and the electron beam mixing in the multi-solder welding process are particularly important. The control software and the offset plate that controls the direction of the beam play a key role in controlling the complex curve heat distribution of the weld. Only very skilled controls can complete complex tasks including aircraft design. Therefore, professionals use electron beam welding machines to design special tasks.

A brief description of the information cycle is a peculiar electron as a complete cycle of energy. The carrier travels from the electron beam generator through the focus coil to the surface of the workpiece, to the sensor, from the sensor to a digital circuit, and through software to the CNC. Target=_blank>Electromechanical control system, then loop into the energy generator and return to the cathode energy generator for regenerative energy. Finally, the energy is used for the welded holes.
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