Difficulties in CNC Machining Of Stainless Steel CNC Parts

Stainless steel for Stainless Steel CNC Parts has been widely used in heavy industry, light industry, daily necessities industry, architectural decoration and other fields due to its excellent corrosion resistance, formability, compatibility, and high toughness over a wide temperature range.

Stainless steel for CNC Steel Parts refers to alloy steel with a chromium content exceeding 12% or a nickel content exceeding 8%. This type of steel has certain corrosion resistance in the atmosphere or corrosive media, and high strength at relatively high temperatures (>450℃). Steel with a chromium content of 16% to 18% is called acid-resistant steel or acid-resistant stainless steel, commonly referred to as stainless steel in daily use.

Thanks to the aforementioned properties, stainless steel is increasingly applied in industrial sectors such as aerospace, chemical engineering, petroleum, construction, and food processing, as well as in daily life.

Severe work hardening: Stainless steel for Stainless Steel Machining Parts has high plasticity. During plastic deformation, the crystal lattice is distorted with a large strengthening coefficient; moreover, austenite is not sufficiently stable, and part of it transforms into martensite under cutting stress. Additionally, compound impurities are prone to decomposition and disperse distribution under cutting heat, resulting in a hardened layer during machining. The work hardening caused by the previous feed or process seriously hinders the smooth progress of subsequent processes.

Large cutting force: The high plastic deformation of stainless steel during cutting leads to increased cutting force. Its severe work hardening and high thermal strength further enhance cutting resistance in Stainless Steel CNC Turning Parts, making chip curling and breaking relatively difficult.

High cutting temperature: Significant plastic deformation and friction between the tool and CNC Stainless Steel Parts generate a large amount of cutting heat. Most of this heat concentrates in the cutting zone and the tool-chip contact interface, with poor heat dissipation conditions.

Chips are difficult to break and prone to adhesion: Stainless steel possesses high plasticity and toughness, resulting in continuous chips during the machining of CNC Steel Parts. These chips not only interfere with the smooth operation but also scratch the machined surface. Under high temperature and pressure, stainless steel has strong affinity with other metals, easily causing adhesion and forming built-up edges. This not only accelerates tool wear but also causes tearing, deteriorating the quality of the machined surface.

High tool wear rate: The affinity during the cutting of Stainless Steel Machining Parts leads to adhesion and diffusion between the tool and chips, resulting in adhesive wear and diffusion wear of the tool. This causes crater wear on the tool's rake face and small spalls or notches on the cutting edge. Furthermore, hard carbide particles (such as TiC) in stainless steel directly contact and rub against the tool during cutting, causing scratches. Combined with work hardening, these factors significantly accelerate tool wear.

Large coefficient of linear expansion: The coefficient of linear expansion of stainless steel is approximately 1.5 times that of carbon steel. Under the influence of cutting temperature, Stainless Steel CNC Turning Parts are prone to thermal deformation, making it difficult to control dimensional accuracy.

Due to its special properties, stainless steel is increasingly used in fields such as electric power, aerospace, petroleum, and food industry. Although stainless steel cutting is characterized by high thermal strength, large plastic deformation, severe work hardening, high cutting heat generation, and poor heat dissipation, the machining quality of stainless steel can ultimately be guaranteed by selecting appropriate tools, cutting fluids, cutting parameters, and machining methods. It is precisely based on a deep understanding of these core machining challenges and years of technical accumulation that our CNC Stainless Steel Parts stand out in the market.

Our products fully leverage the material advantages of stainless steel-such as excellent corrosion resistance, high-temperature stability, and mechanical strength-while addressing the key pain points in the machining process through optimized production processes, precision tool selection, and strict quality control systems. Whether for high-precision requirements in aerospace, corrosion resistance needs in the chemical industry, or hygiene standards in the food sector, our Stainless Steel CNC Parts can deliver reliable performance, stable dimensional accuracy, and long service life, perfectly matching the diverse application scenarios of stainless steel materials and providing high-quality component solutions for various industries.