The Ultimate Guide to CNC Machining Aerospace Part

CNC is a subtractive machining process that can manufacture a variety of prototypes based on 2D and 3D drawings.

However, among many rapidly developing industries, there is an industry that has extremely high requirements for machining parts. --That is aerospace.

Because its main function is to fly and explore experiments in the sky, as well as to be used for combat. Therefore, the tolerance accuracy of the parts will be relatively strict. At the same time, the processed parts also need to meet: light weight, corrosion resistance, rust resistance, etc. But how can we reduce costs under the condition of many requirements? This blog will provide you with a comprehensive guide to construction.

What is aerospace?

Aerospace engineering is a branch of engineering and a professional term used to refer to the atmosphere and outer space. Aerospace organizations have very diverse research activities involving aerospace, design, manufacturing, operation, maintenance and repair of aircraft and spacecraft, as well as commercial, industrial and military applications. Aerospace engineering can also be classified as aerospace engineering or aerospace engineering.

What are the requirements for aerospace parts?

Raw materials: To manufacture aerospace parts, you must have a reliable supply of raw materials, such as aviation aluminum (aluminum alloy 7075), aviation titanium, carbon fiber, and more. Risks: We should mitigate various risks, such as: design changes, material pricing, product demand, political unrest and natural disasters (of course, we also need our own generator box in case of emergency), and we need to prevent the supply chain from being unavailable.

Aerospace material standards allow various companies around the world to test these materials to evaluate their temperature, optical, mechanical, chemical and electrical properties. These materials may be in solid, liquid or gas. Components and equipment are also tested to determine their performance and safe operation. Aerospace material standards also discuss the design and safe operation of various engines used in unmanned aircraft systems and aircraft.

In the fast-changing field of aerospace and aircraft manufacturing, tolerance accuracy and safety are of paramount importance. Components used in aircraft construction must meet strict standards to ensure the safety of passengers and crew. There are also several requirements that must be met to become a successful aerospace manufacturer.

Important Certifications: ITAR(Controls defense-related exports & Required for US aerospace work); AS9102(Checks the first part made & Ensures quality before full production);

ISO Standards(AS9100D (main aerospace standard & ISO 9001:2015 (quality management)).

Processing capabilities of quality equipment:

The multi-tasking and automation equipment of CNC machine tools in aerospace manufacturing shops must keep up with the latest advances in processing technology and projects.

Certified, registered and high-quality equipment with high-quality control and debugging equipment provided by high-end skilled mechanical engineers can also be part of aerospace industry manufacturing. Its net effect, combined with excellent internal operations, is a cost-effective and reliable solution for delivering parts on time.

Advantages and disadvantages of CNC machining aerospace parts?

Like any manufacturing process, there are both advantages and disadvantages to using CNC machining aerospace parts. The advantages and disadvantages will be discussed in detail below.

Advantages: Precision, strong material compatibility, no damage to materials, no need for surface treatment.

Precision: CNC machining tools have unique advantages and can accurately cut complex shapes and depths, while traditional machining technology has many limitations and cannot reach this level of machining.

No surface treatment required: CNC can achieve high-quality surface finish without any tool marks or burrs. No need for later manual re-processing of surface problems, which can save labor. However, if the CNC speed is debugged too fast, a fine sandblasting texture may be produced.

Disadvantages: High cost of single-piece production: If it is a single-piece product manufacturing, the unit price will be very high. Because it takes time to adjust the machine and program, if only one piece is made after the machine is adjusted, the unit price will be higher than the unit price of batch manufacturing. If it is a batch. Just set the program, and if there is no problem with the machining process, then you only need to continuously change the machining material.

CNC machining has gone through hundreds of years of development, from unknown equipment to important equipment known to everyone. We can imagine how difficult the development process of CNC is. Now, CNC brings us complex things that can be done simply without being too cumbersome. During processing, we can choose according to demand to achieve high quality. It is not just for the pursuit of speed to produce, CNC Machining is for the pursuit of high quality to produce and manufacture, which is the original intention of the manufacturing industry and the mission of Shenzhen Zhongyi.

FQA

Q1 CNC processing or EDM processing?

No matter how much the quantity is. However, as long as it involves right angles, drilling small holes, precision holes and parts with complex cavities, EDM can be selected. Although the cost is high, compared with CNC processing, CNC is difficult to achieve this kind of processing technology for drilling holes in parts with complex cavities. When we give the time cost to those parts that need to be processed, then we can figure out that it is much more cost-effective to use EDM processing than CNC processing. Shenzhen Zhongyi is a company with more than 15 years of professional CNC processing and EDM processing experience, and has many successful cases.

Q2 How to save costs?

It is recommended to manufacture parts in small batches. Machinists need time to debug the equipment before processing parts. Once the equipment is debugged, the same program can control the manufacture of hundreds, thousands, or even more parts. If you only need one or a few custom parts, the cost will be high. Because the labor cost of trained skilled machinists is very expensive. If the number of a part reaches several thousand, this will greatly reduce the labor cost of a single part, or even negligible. In short, the more parts are manufactured, the lower the corresponding cost will be.

Q3 Will drawings be leaked?

Your drawings and information are top secrets of Zhongyi Precision. Before starting each order, Zhongyi Precision recommends signing an NDA.

Q4 What is the processing time for custom parts/Customization parts processing time?

Zhongyi Precision can process 100 pieces of parts within three days according to the complexity and tolerance requirements of the parts, and

Q5 How to ensure that the processed parts are perfect?

Zhongyi Precision's quality inspection engineers will use CMM three-dimensional measuring instruments, two-dimensional, height vernier calipers, thread plug gauges, thread pins and other professional measuring instruments to re-test your products. After the inspection is completed, the products and full-size quality inspection reports will be packed and shipped together to ensure that the quality of the products shipped to you is intact and exceeds your expectations