What is the effect of surface roughness on the performance of mechanical parts?

Surface roughness versus grinder surface roughness refers to the small pitch and small peak-to-valley unevenness of the machined surface. The distance (wavelength) between the two peaks or two valleys is small (below 1 mm), which is indistinguishable from the naked eye, so it is a microscopic geometric error. The smaller the surface roughness, the smoother the surface. The size of the surface roughness, tinplate has a great influence on the performance of mechanical parts, mainly in the following aspects:

Surface roughness affects the wear resistance of the part. The rougher the surface, the smaller the effective contact area between the mating surfaces, the greater the pressure and the faster the wear.
Surface roughness affects the stability of the compounding properties. For the clearance fit, the rougher the surface, the easier it is to wear the centrifuge, so that the gap is gradually increased during the working process; for the interference fit, the microscopic peaks are flattened during assembly, which reduces the actual effective interference. , reducing the strength of the joint.
Surface roughness affects the fatigue strength of the part. There are large wave height and low temperature test chamber valleys on the surface of rough parts. Like sharp corner notches and cracks, they are sensitive to stress concentration, which affects the fatigue strength of parts.
Surface roughness affects the corrosion resistance of the part. The rough surface easily causes corrosive gases or liquids to penetrate into the inner layer of the metal through the microscopic valleys of the surface, causing surface corrosion.
Surface roughness affects the tightness of the part. The rough surfaces do not fit tightly together, and the gas or liquid leaks through the gap between the contact faces.
In addition, the surface roughness also affects the appearance and measurement accuracy of the part.

For more information about the roughness meter's roughness meter, you can browse it: http://
Http://news.chinawj.com.cn Editor: (Hardware Business Network Information Center) http://news.chinawj.com.cn

Spray Grain Texture  Pu Sandwich Panels

Rich selection of textures and colors meet different decoration requirements, giving the city and the buildings a new look.
The PU foam is the most advanced and eco-friendly insulation material in the world. With the help of the back aluminum foil, the thermal preservation effect achieves the best.
The unique structure prevents the heat loss in winter. Meanwhile it reduces the heat of the summer sunshine.
Aceta paintcoat and flurocarbon paint of weather resistance performance are applied on surface of wall panel. It is reserved with superior self-cleaning, weather resistance, corrosion resistance and acid& alkali resistance performance.
Light weight with 3.7Kgs/m2 makes the installation easy.
The installation process is clean and tidy without any noise and dust, construction waste.
Different selections of accessories meet different effects.
High quality and stable performance: Manufactured in CNC automation production line, the product pass rate can reach 99.9% with stable chemical structure and physical structure.

Spray Grain Texture PU Sandwich Panels

Metal Cladding Panels,Insulation Metal Cladding Panels,Spray Grain Texture Pu Sandwich Panels,Spray Grain Texture Pu Sandwich Panels

Jinan Zhengtang Insulation Decoration Material Co.Ltd , https://www.ztwallsiding.com

This entry was posted in on