CNC Machining：Principles of Material Selection for CNC Machining Parts

The design of CNC machined parts is often inseparable from their own experience, and the principle of material selection for CNC machined parts is often the accumulation of experience. The experience of others is really not easy to understand and absorb. Here, VMT summarizes some humble opinions for your reference.

The principles of material selection for CNC machining parts should consider these requirements

Requirements for use (mainly considered)

1) Working conditions of CNC machined parts (vibration, shock, high temperature, low temperature, high speed, high load should be handled with care);

2) Restrictions on the size and quality of CNC machined parts;

3) The importance of CNC machining parts. (importance relative to overall reliability)

Process requirements

1) Blank manufacturing (casting, forging, cutting board, cutting rod);

2) Machining;

3) heat treatment;

4) Surface treatment.

Economic requirements

1) Material price (comparison of blank cost and nachining cost of ordinary round steel and cold-drawn profile, precision casting and precision forging);

2) Batch CNC machining cost;

3) The utilization rate of materials; (such as the specifications of plates, bars, profiles, and reasonable use)

4) Replacement (try to replace relatively expensive rare materials with cheap materials, such as replacing copper sleeves with tough inks in some wear-resistant parts, replacing some sleeves with oil-impregnated bearings, and using nylon when the speed load is not large). Substitute for steel gears or copper worm gears, etc.).

Consider local material availability

Basic requirements of CNC machining design: pay attention to coordination and balance, pay attention to the functional requirements of the machine! Prevent the barrel effect from appearing.

1、The economic requirements of the machine

Design economy Put into production and market in a short period of time, recover consumption during development period, and even design and manufacture economical use with the best cost performance (products start to make money from small batches, and then modify)

2. Basic requirements for CNC machining parts design

1) Work normally and reliably within the specified working period to ensure the functions of the CNC machining machine

2) Minimize the production and manufacturing costs of CNC machined parts

3) Use as many standard parts as possible on the market

4) For products that may be serialized, try to consider the versatility of the parts at the beginning of the design, and try to be similar in structure to those that cannot be universal, so as to reduce the workload of CNC machining process arranging the manufacturing process and fixture tooling design.

Pain points for today's designers

Fragmentation of manufacturing process information, CNC machining plants and tooling systems are not fully understood by designers.

The CNC machine shop has limited ability to understand the information provided by the designer

The advancement of CNC machining and manufacturing technology and the popularization of computer-aided design have kept designers away from CNC machining factories

The designer's two-dimensional design cannot be quickly synchronized into an intuitive three-dimensional object, and the customer cannot directly obtain an accurate product experience.

I propose the following:

Choose a factory or platform with transparent information, perfect technology and comparable strength for cooperation.

CNC nachining factories need professionals to connect with design designers, fully understand the main points and difficulties of CNC nachining, and find the correct solution.

Designers should also go to the factory to understand the actual situation and understand the actual situation on the front line, which will help optimize the design scheme.

Improve the professional level, life and learning of designers.

VMT is a reliable one-stop CNC machining service manufacturer, making CNC machining parts as easy as online shopping!