From key components of aircraft engines to medical devices such as heart stents, PH stainless steel CNC processing is becoming a core force in promoting the upgrading of high-end manufacturing.
Definition of PH stainless steel CNC machining
PH stainless steel CNC machining refers to the process of using computer digital control technology to perform automated, high-precision cutting of PH stainless steel materials. PH stainless steel undergoes solid solution treatment and then precipitation hardening, and has high strength, high toughness and good corrosion resistance. CNC machining uses programming software to convert part design drawings into numerical control instructions, and controls CNC machine tools (such as machining centers, lathes, grinders, etc.) to perform milling, turning, drilling, grinding and other processing operations on PH stainless steel materials, accurately controlling the size, shape and surface quality of parts to meet the stringent requirements of high-end manufacturing for parts.
Types of PH stainless steel CNC processing
Aerospace parts
Such as aircraft engine blades, landing gear parts, spacecraft structural parts, etc. These parts need to withstand high temperature, high pressure and complex stress, requiring PH stainless steel CNC processing to have extremely high precision and surface quality to ensure the safety and reliability of aerospace equipment.
Medical device parts
Including surgical instruments (such as scalpels, hemostatic forceps), implantable medical devices (such as bone screws, heart stents), etc. The processing process must strictly follow the medical industry standards to ensure the biocompatibility, corrosion resistance and high precision of the parts, reduce the risk of postoperative infection, and improve the treatment effect.
Precision instrument parts
Structural parts and transmission parts used for high-end measuring instruments, optical equipment, etc. Strict requirements for dimensional accuracy, surface roughness and geometric tolerances require CNC processing to achieve micron-level or even submicron-level precision control to ensure the measurement accuracy and stability of the instrument.
Mold manufacturing
PH stainless steel is often used to manufacture precision molds (such as injection molds and die-casting molds) due to its good wear resistance and processing performance. CNC machining can achieve high-precision machining of complex mold cavities, thereby improving the service life of the mold and the quality of the molded products.
Precautions for PH stainless steel CNC machining
Tool selection
PH stainless steel has a significant tendency to harden during machining, so it is necessary to select tools with good wear resistance and strong anti-adhesion, such as cobalt-containing high-speed steel tools and carbide coated tools. At the same time, the tool geometry angles (such as larger rake angles and appropriate back angles) should be reasonably designed to reduce cutting force and cutting heat.
Cutting parameter optimization
Avoid excessive cutting speed to prevent aggravation of machining hardening; appropriately increase the feed rate to reduce the contact time between the tool and the workpiece and reduce cutting heat.
Cooling and lubrication
Adopt efficient cooling and lubrication methods to take away cutting heat in time, reduce tool wear and improve surface quality. The cutting fluid should be a special cutting fluid with strong anti-adhesion and good anti-rust performance.
Clamping deformation control
PH stainless steel parts have poor rigidity, and a reasonable clamping method should be used during clamping to avoid deformation of parts due to excessive clamping force. At the same time, adjust the clamping force in stages to ensure stable positioning of parts during machining.
Machining sequence planning
Reasonably arrange the processing sequence, follow the principle of roughing first and then fine, and primary first and then secondary, to reduce the accumulation of machining stress. For complex parts, symmetrical processing and step-by-step processing strategies can be used to reduce the risk of deformation.
Environmental Control
During high-precision processing, the temperature, humidity and cleanliness of the processing environment must be controlled to prevent environmental factors from affecting the processing accuracy. If necessary, processing should be carried out in a constant temperature workshop and CNC machine tools should be calibrated regularly.
Chongqing Xuanmin Technology Co., Ltd. has been focusing on PH stainless steel CNC processing for many years. With its profound technical accumulation, advanced equipment and strict quality control, it has become a high-quality partner in the field of high-end manufacturing, providing customers with one-stop solutions from parts design to finished product delivery：
Advanced processing equipment
Introducing internationally leading five-axis linkage CNC machining centers, high-precision CNC grinders, EDM machines and other equipment, equipped with high-speed spindles (speeds up to 40,000r/min) and high-precision servo systems to ensure micron-level processing accuracy. At the same time, build an intelligent processing workshop to achieve equipment networking and automatic monitoring of the production process.
Professional technical team
A professional team composed of material experts, CNC process engineers, and programming engineers, in-depth research on the processing characteristics of PH stainless steel, mastering advanced processing technology. The team can provide full-process technical support from material selection, process optimization to product testing according to customer needs to ensure that the processing plan is scientific and efficient.
Strict quality control
Establish an ISO 9001 quality management system, from raw material inspection (spectral analysis, flaw detection), processing process monitoring (online measurement, real-time parameter adjustment) to finished product full inspection (three-coordinate measurement, performance testing), implement strict control of the entire process. Equipped with advanced testing equipment to ensure that each product meets international standards and customer requirements.
Customized service
Support customers' personalized customization needs, whether it is single sample trial production or mass production, we can respond quickly. Provide one-stop service from product design optimization, mold manufacturing to surface treatment, shorten product development cycle and reduce customer costs.
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