High-Precision Sheet Metal Processing Services

I. Core Service Advantages

- Micron-level precision control and tight tolerances: Laser cutting accuracy reaches ±0.02mm, bending angle tolerance ±0.1°, and hole positioning accuracy ±0.03mm, meeting the assembly requirements of precision parts. Standardized processes and a first-article inspection system ensure dimensional consistency of parts in mass production exceeding 99.5%, reducing assembly rework due to precision deviations.

- Fully integrated service streamlines the supply chain: We offer an integrated process flow encompassing "laser cutting - CNC bending - precision welding - surface treatment - assembly," eliminating the need for customers to work with multiple suppliers. Equipped with automated loading and unloading equipment and a process integration system, processing cycles are shortened by 25%-30% compared to decentralized outsourcing, while also reducing transportation losses and communication costs.

- Multi-material compatibility, adaptable to diverse working conditions: Supports processing of various materials, including stainless steel (304/316L), carbon steel (Q235/Q355), aluminum alloy (6061/5052), galvanized sheet, and galvanized sheet, with thicknesses ranging from 0.1 to 12mm. The optimal material is recommended based on the part's intended use (e.g., corrosion resistance, high strength, lightweight), and customized processing parameters are matched to ensure high-quality finished products.

- Complex structure forming to meet customized needs: Capable of complex curved surface bending, multi-station welding, and special-shaped hole cutting, it can process complex sheet metal parts, including right-angle and arc bending, box structures, and frame components. For complex structures, 3D CAD modeling and process simulation previews help prevent forming defects in advance, ensuring a first-pass processing yield exceeding 98%.

II. Core Application Areas

(I) Industrial Equipment
- Equipment Housings and Shields: We manufacture stainless steel 304 equipment housings, laser cutting precise holes (aperture tolerance ±0.05mm), and then bending and forming them with a brushed finish for both rust resistance and aesthetics. We also customize carbon steel equipment shields with ribbed design for increased rigidity, meeting the protection requirements of machine tools and automated equipment.

- Internal Structural Parts: We manufacture aluminum alloy 6061 equipment brackets and connectors, featuring a lightweight design (40% lighter than carbon steel) and guaranteed strength. Bending precision ensures precise assembly with other components, reducing vibration during equipment operation.

(II) New Energy
- Battery Cabinets and Brackets: We customize galvanized steel battery cabinet housings, laser cutting and then bending them. We weld them using pulsed argon arc welding, resulting in smooth, airtight welds and IP65 protection. We also manufacture carbon steel battery brackets, using CNC bending to ensure hole alignment, facilitating rapid installation of battery modules.

- Photovoltaic Accessories: We manufacture 5052 aluminum alloy photovoltaic bracket connectors, featuring excellent corrosion resistance and a bending angle accuracy of ±0.1°, ensuring smooth and stable bracket installation, suitable for long-term outdoor use.

(III) Communications and 3C Electronics
- Communications Base Station Accessories: We process 316L stainless steel base station antenna covers, laser-cut to precisely reserve signal windows, and apply a passivation treatment to the surfaces after bending to protect against UV rays and wind and rain. We also customize carbon steel base station cabinet frames, which are welded and polished to ensure structural stability and facilitate internal equipment installation.
- 3C Equipment Housings: We manufacture 6061 aluminum alloy laptop brackets and printer housings, featuring thin-wall bending (minimum wall thickness 0.8mm) with an accuracy of ±0.03mm. Our surfaces are anodized for enhanced texture and wear resistance.

III. Core Technology Support
- High-Precision Processing Equipment: Equipped with a German TRUMPF TruLaser 5030 fiber laser cutting machine (cutting speed up to 30m/min, positioning accuracy of ±0.015mm), a Japanese Amada RG-100 CNC press brake (6-axis bending, repeatability of ±0.005mm), and a Swiss Bystronic welding robot, ensuring stable precision in each process.

- Digital Process System: Utilizing SolidWorks and AutoCAD for 3D modeling and development, orders are linked to process parameters through the ERP system. Automatic programming software for the bending process automatically generates bending sequences and compensation parameters based on part shape, reducing errors caused by manual intervention.

- Surface Treatment and Quality Inspection: We offer surface treatments such as spraying (powder/liquid), brushing, passivation, anodizing, and galvanizing. All processes comply with RoHS environmental standards. During the quality inspection process, we use a three-dimensional coordinate measuring machine (accuracy ±0.001mm), a 2D imager, and a tensile testing machine to comprehensively inspect dimensions, weld strength, and material properties.

- Flexible Production Capabilities: We have established a flexible production line that supports switching between small-batch customization (1-50 pieces) and large-scale mass production (10,000+ pieces). Small-batch orders utilize rapid mold change technology, reducing mold change times to less than 30 minutes. Large-batch orders are produced on automated assembly lines, with a daily production capacity of over 5,000 pieces.

IV. Frequently Asked Questions (FAQs)
- Q: What is the minimum accuracy achieved in sheet metal processing? Are there differences in accuracy for different materials?

A: The minimum accuracy for laser cutting is ±0.02mm, and the minimum angle tolerance for bending is ±0.1°. Accuracy varies slightly depending on the material's ductility and hardness. For example, aluminum alloy bending accuracy is slightly higher than carbon steel, but all materials meet the basic tolerance requirement of ±0.1°. Detailed accuracy specifications can be provided based on the material.
- Q: What considerations should be taken into account when designing complex sheet metal parts? Can you provide design optimization suggestions?
A: The design should pay attention to the bend radius (recommended ≥1.5 times the plate thickness), hole margin (≥1.2 times the plate thickness), and welding clearance. We can provide design optimization services, such as merging parts to reduce welding steps and optimizing the bending sequence to avoid interference, thereby reducing processing difficulty and cost.
- Q: What surface treatment processes are available for sheet metal parts? How do I choose the right one?
A: Common processes include powder coating (excellent weather resistance and rich colors), anodizing (suitable for aluminum alloys and has a good texture), passivation (rust-proofing stainless steel), and galvanizing (rust-proofing carbon steel). You can choose based on the usage environment (e.g., outdoor/indoor, corrosive conditions) and appearance requirements, and we will provide matching recommendations.
- Q: What is the lead time for small and large orders? Do you support rush orders?
A: Small orders (1-50 pieces) have a lead time of 3-5 days; large orders (1,000+ pieces) have a lead time of 7-10 days. We also support urgent orders, with expedited delivery within 24-48 hours through capacity allocation (depending on order complexity and quantity).
- Q: Can you provide trial production of samples? Will you proceed to mass production after the samples are qualified?
A: Yes! We can produce 1-3 samples first. Once the customer confirms the dimensional accuracy, appearance quality, and performance, we can start mass production. The trial production of samples takes 2-3 days. During the trial production process, we can adjust process parameters based on feedback to ensure the final product meets expectations.