NXF UNS 316/0Cr17Ni12Mo2/1.4401 Machined Metal Structural Components 316 Stainless Steel CNC Precision Metal Bending Parts

1. Raw Material Selection and Pre-treatment: Based on product design requirements, select corresponding grades of metal sheets or profiles (such as stainless steel sheets, aluminum alloy profiles, carbon steel sheets, etc.), and check whether the dimensional tolerances, surface quality, and mechanical properties of the raw materials meet the standards. Then, proceed with blanking and cutting, using methods such as laser cutting, plasma cutting, or shearing machines, to process the raw materials into blanks of the required dome dimensions.

2. CAD/CAM Solution Design and Programming: Based on product drawings, technicians create a 3D or 2D dome model in CAD software, specifying key parameters such as dome angle, dome radius, and dome orientation. The design file is then imported into CAM software, and path planning and program writing are performed in conjunction with the dome machine's model parameters and mold type to generate machining code that can directly drive the CNC dome machine.

3. Bending Die Selection and Installation: Based on the blank thickness, bending radius, and bending angle, match the corresponding upper die (e.g., pointed die, dome die) and lower die (e.g., V-groove die). Position the die accurately on the designated location on the CNC bending machine, adjust the die clearance and pressure parameters, and test the die installation accuracy through trial bending to ensure the bending dimensions and angles meet design standards.

4. CNC Bending Forming: Place the pre-treated metal blank on the worktable positioning device of the bending machine. Start the preset processing program. The CNC system drives the bending machine slider to press down the upper die, causing the metal blank to undergo plastic deformation along the V-groove of the lower die, completing a single bending action. For parts with multiple bending processes, complete each bending step sequentially according to the preset order. The entire process is precisely controlled by the CNC system to ensure bending accuracy.

5. Semi-finished Product Quality Inspection: After the dome-folding process, use inspection tools such as angle gauges, vernier calipers, and 3D coordinate measuring machines to comprehensively inspect the dome angle, dimensional tolerances, dome radius, and surface flatness of the parts. If dimensional deviations or angle out-of-tolerance issues are found, adjust the dome-folding machine parameters or mold position promptly for rework correction.

6. Post-processing: Deburring is performed on the dome-formed parts. Burrs and sharp corners on the bending edges are removed through grinding and polishing. Surface treatments such as spraying, electrophoresis, electroplating, and wire drawing are performed according to product requirements to improve the corrosion resistance and appearance of the parts. Some high-precision parts also require stress relief treatment to prevent deformation during subsequent use.

7. Final Inspection and Packaging: Final quality inspection is conducted on the post-processed parts to verify that all dimensional parameters, surface quality, and performance indicators meet the customer's drawing requirements. After passing the inspection, the parts are classified, protectively packaged to avoid damage during transportation, and finally registered and stored in the warehouse for delivery.