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What problems do we face when CNC machining aerospace parts?

Precision machining of aerospace parts is accompanied by many problems. First, many of the components that make up an airplane come from a range of materials. For example, an engine is one of the most critical components that must function properly. We are made of hardened heat resistant alloy which is tricky for machines. They are poor conductors of heat and are therefore prone to temperature rise during operation. This is because the heat cannot be dissipated. The requirements of precision aerospace parts are generally more stringent than those of other industries. In addition, the geometry of its parts requires more tasks to be handled.

In addition to direct processing problems, there are some other indirect problems. One of these is named Production Standards, and just like in medical facilities, aerospace parts must meet strict processing standards. The following guidelines will describe how we can efficiently machine aerospace parts.

How to efficiently process thin-walled aerospace parts CNC machining aviation parts

Weight is an important factor we consider when designing. Lighter aircraft use less fuel. Therefore, our team of experts prefers to design aerospace components with thin lattices, walls and webs. Initially, we started working on stamped metal blocks or solid castings. The waste generated by this process is 95%. In this case, however, high material waste is not a major concern.

The practical problem is that we have to use high cutting forces. This can cause distortion when machining such parts. If we increase the feed and depth of cut, it is likely to break the thin wall. This is caused by accompanying vibrations. We could also end up generating excess heat that warps the walls. In this case, we have to chop off tiny pieces at the speed of a snail's feeding. This increases the overall machining time.

Fortunately, our team of experts has figured out a way to shorten the processing time. This allows us to machine thin-walled aerospace parts more efficiently. The first thing we tried to do was lower the vibration. Thin walls may bend or crack after being struck with a vibrating tool. We do this by reducing the feed rate while increasing the number of tools.

We can select multiple tools in a CNC lathe or multiple cutting edges in a CNC mill. The best cutting method for milling aerospace thin-walled parts is climb milling. It utilizes the opposite feed to normal milling methods. Climb milling results in lower cutting forces. It also has a better surface finish and lower vibration. The lower vibrations result from the grinder entering its thickest-walled material.

How to Reduce Overheating of Aerospace Alloys

The overheating of aviation parts is caused by poor heat conduction. Fortunately, our team of experts at Skyworth came up with a solution to this problem. The machining strategy is trochoidal milling. It utilizes the capabilities of CNC machines to trace complex cutting paths. The cycloidal method utilizes a small milling cutter moving along the same path as the projection of the spring on the plane. The mill cuts after one curve, then returns on a second curve, cutting the metal again. This method reduces the contact time between the tool and the material, allowing it time to cool.

Although the technique has coarser tool runs than normal milling. Fortunately, it negates this by offering increased cutting feeds and speeds. We also offer more efficient EDM machining than precision aerospace parts.

Choose the right tool for fast machining

CNC machines play an important role in considering machine tools. This is because it has a range of uses in aluminum alloy machining. An important way to improve machining efficiency is to choose the right tool. The trick in choosing a tool for any material is to try to counteract its negative characteristics. In this case we are dealing with hardened heat resistant metal alloys. The perfect tool for this situation is a diamond cutting tool. They are stiffer, more durable, and cause almost no vibration. There are also ceramic tools that work at extremely high temperatures. This helps us increase efficiency when CNC machining aerospace parts. Contact us if you have any questions or quotes regarding the machining of aerospace parts.