CNC machining stainless steel castings

Tianhui machine is very experienced in CNC machining stainless steel castings. With strong capability of casting a wide variety of stainless steel alloy, provide custom stainless steel casting parts and components for industries and applications including automotive, food & dairy, machinery, medical, plumbing, watering, mining, petrochemical, electrical, energy, aerospace, submarine and others. We can assure you high quality CNC machining stainless steel castings.

The sizes of the stainless steel casting parts range from 0.1 inch up to 24 inches. The weights of the stainless steel casting parts are from an ounce to 50 pounds. Typical tolerances are ± .005” per inch.

We work with our customers to assure that CNC Machining stainless steel casting products/components can be manufactured with the desired characteristics in the most cost effective manner. Using simulation software to provide a “virtual prototype” we can begin to optimize the design prior to supplying products/components for design validation. We strive to be our customers’ best stainless steel casting supply chain partner.


机械加工大致可分为强制进给和压力进给 两种方式。而我们通常所说的精密机械加工为精密车、精密铣、钻、精磨等加工工艺。以下为介绍机械加工:




The difference between surface finish and roughness

Surface finish and roughness are the same concept.Ningbo Tianhui is a professioal factory which can meet your requiremnets.

Surface finish is another name for roughness. The smoothness is proposed according to the human visual point of view; and the roughness is proposed according to the actual microscopic geometry of the surface.

surface roughness

surface roughness

In order to be in line with international ISO standards, China adopted surface roughness after the 1980s, and abolished surface finish.

After the promulgation of the national standard for surface roughness, the surface finish is no longer used.

Roughness has a calculation formula for measurement, and smoothness can only be compared with a sample gauge, so roughness is more scientific and rigorous than smoothness.

Surface roughness refers to the unevenness of the small spacing and small peaks and valleys existing on the machined surface. The distance between its two peaks or two valleys is very small, which belongs to the error of microscopic geometry.

The smaller the surface roughness, the smoother the surface. Surface roughness is generally formed by the processing method employed and other factors.

Surface roughness affects wear resistance, fit stability, fatigue strength, corrosion resistance, sealing, contact stiffness, and measurement accuracy.

Mechanical drawings are generally marked with Ra to represent.

For more information ,please be kindly to contact us .

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