What is chemical grinding?
Chemical grinding or chemical machining is the process of removing metal by strong chemical solutions to the metal surface. It is used to remove a large amount of metal to obtain parts that cannot be easily processed using traditional machining methods. Parts that require accurate engineering, such as miniaturized micro -components or parts containing deep inner cavities, are just some of the ingredients produced with chemical milling. Although it has many applications in automotive production and electronics, it is very widely used in the aviation industry.
This method of machining is considered one of the oldest non -traditional machining methods. Chemical milling was used in the 19th century for decorative etching and its application in industry appeared much later. Manuel C. Sanz, an engineer in the North American airline, is attributed to solving the problem of critical weight on the missile case using the process. Patproces in 1956.
The whole process is quite simple and ZHIt rifles cleaning and camouflage parts that do not require etching. The metal is then immersed in large tanks of the etching solution. The amount of material removed is controlled by the concentration of chemical solution, the type of etching agent used, time spent in the tank and temperature. The ultrasonic thickness tester helps the operator regularly assess the thickness of the part until it meets the thickness listed in the plan. The glued parts are cleaned and checked to check the quality.
A large number of parts can be milled simultaneously, making it extremely cost -effective production method. The primary use of chemical milling is to reduce the weight of the metal in shaped parts. It is even possible to better etch complex shapes and protrusion with maximum accuracy. Many parts of the commercial aircraft, triggering vehicles, missiles and turbines are produced with chemical milling. Both small parts such as cover plates or large parts such as torso leather, can be made very easily.
It is one of the most popular machining methods because it is quite simple, cheap and well established. The advantage of using this process over other machining methods is low cost of capital and tools, rapid weight reduction and minimal need for qualified workforce. In addition to facilitating the implementation of design changes, it does not expose metal with further voltages. The quality of the metal surface remains good and no burrs are formed in this process. The disadvantages are that it can be difficult to drive a very strong material or get to the sharp corners and the etching solution can be dangerous for work.