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Technical Analysis of Automotive Bumper, Hood, and Trunk Lid Processing:
1. Core Processing Technology
--Laser Cutting: Utilizes a 3kW fiber laser system to achieve ±0.1mm precision cutting of complex patterns, particularly suitable for processing high-strength steel and aluminum alloys.
--CNC Stamping: A 2,000-ton servo press can complete single-shot forming of 0.8-6mm steel sheets, with a mold life of over 500,000 cycles.
--Robot Welding: A combined laser welding and resistance spot welding process increases weld strength by 30%, ensuring vehicle body sealing meets IP67 standards.
2. Key Points for Typical Component Processing
Bumper Processing
--Material Selection: Primarily PP/ABS plastic, impact resistance must be considered.
--Mold Inspection: Use an articulated arm to ensure accuracy of 0.032mm.
--Common Defect Treatment: Address tiger stripes by adjusting the injection speed.
Hood Processing
--Surface Treatment: Inspect paint ripples and press line smoothness.
--Assembly Requirements: Fender joint uniformity ≤ 1mm.
--Repair Process: Meson drawing technology ensures thickness variation < 5%.
Trunk Lid Processing
--Repair Standard: Minor deformation, sheet metal repainting, 200-800 RMB; severe deformation, replacement, 800-2000 RMB.
--Seal Inspection: Check the consistency of the sealant strips.
--Color Difference Control: Spectrometer colorimetry system achieves ΔE ≤ 1.5.
3. Quality Inspection System
--Dimensional Inspection: Coordinate measuring machines ensure mounting hole accuracy of ±0.05mm
--Welding Inspection: X-ray inspection detects internal cracks
--Coating Inspection: Paint thickness gauges control the range of 30-80μm
--Assembly Inspection: Laser scanners verify seam uniformity
4. Industry Application Cases
--New Energy Battery Box: Laser welding + airtightness testing ensures IP68 protection
--Body Structure: Hot-formed steel laser welding technology achieves a tensile strength of 1500MPa
Our processing capabilities
As an excellent custom sheet metal manufacturer, we have the following advantages. Explore different sheet metal fabrication solutions based on advanced manufacturing capabilities to meet your custom metal fabrication needs.
Laser Cutting
Our laser cutting technology ensures precision, clean edges, and minimal waste for intricate designs and tight tolerances.
Metal Bending
We provide metal bending services with advanced machinery to shape metals without compromising structural integrity.
Stamping
Our sheet metal stamping shapes metal into precise forms, perfect for large quantities of identical, high-quality parts.
Our Advantages
Experienced Fabricator
Drawing on decades of experience, we provide high-quality sheet metal fabrication services that meet industry standards.
In-House Equipment
Our factory utilizes advanced technology, ensuring faster production and enhanced quality control for every project.
Quality Inspection
We ensure quality by inspecting each component to ensure it meets customer specifications before it leaves our factory.
Sheet Metal Expertise
Work with our engineers for design advice, manufacturability insights, and cost-saving tips.
Our sheet metal factory
Available Materials for Sheet Metal Fabrication
Here is a list of our standard available metals for sheet metal fabrication. If you require a custom material please contact us via email.
| Material | Subtypes |
|---|---|
| Aluminum | Aluminum 5052, Aluminum 5083, Aluminum 5754 |
| Copper | Copper C101, Copper C103, Copper C110, Copper C260 (Brass) |
| Stainless Steel | 301, 304, 316, 316L |
| Steel | SPCC, Galvanized Steel (SGCC / SECC), Q235, Steel 1020 |
| Equipment | Brand | Quantity |
|---|---|---|
| CNC Laser Cutting Machine | Mitsubishi ML3015SR-f20ML3015GX-F40 | 3 |
| CNC Laser Cutting Machine | Mitsubishi ML3015eX | 3 |
| CNC Laser Cutting Machine | BaiChao DiNeng 3000W | 4 |
| CNC Bending Machine | Amada RG80 | 5 |
| CNC Bending Machine | Tongyang APB-3613WU | 2 |
| CNC Bending Machine | Tongyang HYB-6020 | 3 |
| CNC Bending Machine | Tongyang APB-5620WU | 4 |
| CNC Bending Machine | Osmar OSM 0G-60III | 6 |
| 600T Press | Yihui YHA4-600T | 3 |
| 400T Press | Y34-400T | 4 |
| 300T Press | Yihui YH-300T | 3 |
| 160T Press | Shengze SJ-160T | 5 |
| 100T Press | Shengze SJ-100T | 5 |
| 250T Stamping Machine | Xieyi SN2-250 | 5 |
| 110T Stamping Machine | Jinfeng COP-110N | 10 |
| 80T Stamping Machine | Xieyi SN1-80 | 5 |
| 618 Riveting Machine | Haeger-618PLUS-H | 15 |
| 617 Riveting Machine | HAIGEH 617 | 10 |
| 416 Riveting Machine | Haeger-416-220 | 5 |
| Handheld Laser Welding Machine | Fenghuo WSM-400 | 2 |
| Welding Machine | Yili NBC315 | 3 |
Tolerances for Sheet Metal Fabrication Services
Listed below are the standard tolerances achieved for parts produced by our in-house sheet metal factories.
| Feature | Tolerance |
|---|---|
| Cutting feature | From ±0.002" (0.05 mm) |
| Bend angle | From ±1.0° |
| Bend to edge | From ±0.004" (0.1mm) |
Sheet Metal Fabrication is a comprehensive cold processing process for metal sheets (usually less than 6mm), including shearing, punching/cutting/compositing, folding, riveting, splicing, forming (such as automobile bodies), etc. Its distinctive feature is that the thickness of the same part is consistent.
MoreSheet metal components are light in weight, small in processing volume, easy to cut and weld, and can manufacture large and complex components with standardized shapes for easy automatic processing.
MoreSheet Metal Fabrication Services Custom sheet metal fabrication services using advanced technology for prototyping or large-scale production. Partner with us for efficient, cost-effective, and reliable solutions today! Post-processing options such as annealing, powder coating, etc. Over 30 metals Free quoting and design feedback
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