High-precision measurement methods in the processing of precision mechanical parts

During our product design process, sample runs of products machined from precision machined parts are subject to some of the most stringent inspection processes. The inspection methods we use certify to our customers that their parts meet specified tolerances and are free of defects. From magnetic particle inspection to laser scanning, we ensure that every new product goes through a series of tests before being shipped to customers.

We regularly use powerful inspection techniques to find and diagnose any flaws or defects in metal components. In some cases, we use these methods to reverse engineer existing parts with defects. In other cases, we have identified defects in the initial design that caused downstream manufacturing challenges.

We take pride in quality, which means taking inspections very seriously. Our factories employ state-of-the-art quality control methods throughout the production process to guarantee precision machined parts machining that meets or exceeds expectations. Going a step further, our CNC machines excel in the quality control department. With inspection capabilities at the forefront of measurement technology, it is also able to diagnose performance issues, determine the cause of any defects, and even recommend changes to the manufacturing process.

Inspections vary from part to part, depending on the shape and size of precision machined parts and material composition. If a defect is suspected, that also informs the inspection strategy. The techniques below include a sample of quality control methods used in our CNC machining plants.

1. Manual measurement

Manual measurements using micrometers, calipers, altimeters, pins, plates and other tools.

1. Suitable for simple products with lower key areas;

2. Advantages include quick setup and low-cost tools;

3. Disadvantages include the time involved in the measurement, lack of repeatability, and difficulty in measuring curved surfaces.

Second, the coordinate measuring machine (CMM)

A range of measurement devices, from manually configured measurement stations to portable laser scanners, enable precise measurements with reduced human error.

In precision machined parts machining operations, CNC machining controls CMMs and portable laser arms. Each device has different advantages and disadvantages, from setup time to repeatability and accuracy. Using existing equipment, radial or linear tolerances of +/- .0003' and surface finishes down to 32ra can be measured.

3. Portable Laser Scanner

Precision mechanical parts machining measurement technology using portable laser scanners aids in inspection and reverse engineering.

1. It is suitable for complex products with complex surfaces;

2. Advantages include time saving, ease of setup, the ability to accurately measure curves and the ability to overlay a grid of coordinates onto a nominal 3D file;

3. Disadvantages include equipment cost and advanced software training requirements.

Our CNC machining equipment manufacturer and our machining plant can fulfill this machining requirement through cooperation.

By performing all these tests, responsible manufacturers like us ensure that all defects are found before going into full production. If any defects are found, this comprehensive inspection process ensures that engineers can diagnose and fix the problem.