Ultra high precision quality inspection is a technical means for extremely accurate measurement and evaluation of products or parts, such as precision mold manufacturing, high-end CNC machine tool parts manufacturing, etc. the dimensional accuracy and surface quality of the mold directly affect the forming quality of the product, while the accuracy of CNC machine parts is related to the machining accuracy and performance of the machine tool, so ultra-high precision quality inspection is needed to ensure the product quality
Dimensional accuracy test:
The length, width, height, diameter, aperture, thickness and other basic dimensions of the parts shall be accurately measured to ensure that the deviation is within a very small tolerance range, such as the blade profile dimensions of aero-engine blades and the diameter dimensions of automobile engine pistons, which need to reach the micron level or even higher dimensional accuracy
Geometric tolerance detection:
It includes the detection of shape tolerance (such as straightness, flatness, roundness, cylindricity, etc.) and position tolerance (such as parallelism, verticality, coaxiality, symmetry, etc.) to ensure that the shape and position accuracy of parts meet the design requirements, which is very important to ensure the assembly accuracy and motion accuracy of mechanical products, such as the straightness of machine tool guide rail, coaxiality of automobile transmission gear, etc
Surface quality inspection:
Check the surface roughness, scratches, cracks, pores, sand holes and other defects of the parts. The detection accuracy of the surface roughness can reach the nanometer level. The surface quality of the parts can meet the use requirements through the detection of optical microscope, electron microscope, surface roughness instrument and other equipment, such as optical lenses, precision molds and other parts with extremely high surface quality requirements
Material performance test:
Carry out chemical composition analysis, metallographic analysis, hardness test, tensile test, impact test, etc. on the materials of the parts to verify whether the properties of the materials meet the design requirements and ensure the reliability and stability of the parts in the process of use, such as the strength and toughness test of aerospace parts and the conductivity and thermal conductivity test of electronic components
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