Custom Metal Part Manufacturing Service

Manufacturing Insight: Custom Metal Part

Manufacturing Insight: Custom Metal Parts in Sheet Metal Fabrication

Sheet metal fabrication remains a cornerstone manufacturing process for producing custom metal parts across aerospace, medical, electronics, and industrial equipment sectors. This technology transforms flat sheet stock into complex three-dimensional components through precise cutting, bending, and assembly operations. At Shenzhen Honyo Prototype, we leverage advanced capabilities to deliver high-integrity custom metal parts that meet stringent functional and aesthetic requirements, serving as a critical partner from prototype validation through low-to-mid volume production. Our integrated approach ensures manufacturability is addressed early, minimizing cost and lead time while maximizing part performance and reliability.

Honyo Prototype excels in translating intricate designs into tangible, high-precision sheet metal components. Our core competencies encompass laser cutting, CNC punching, precision press braking, and robotic welding, supported by comprehensive finishing services. We handle a diverse material portfolio including aluminum alloys (5052, 6061, 7075), stainless steels (304, 316), cold-rolled steel (SPCC), and specialty metals, ensuring optimal material selection for environmental exposure, strength, and conductivity needs. Critical to our process is the application of Design for Manufacturability (DFM) principles during the quoting phase, where our engineering team proactively identifies potential fabrication challenges and suggests refinements to enhance yield and reduce assembly complexity without compromising design intent.

The following table summarizes key technical specifications achievable within our standard sheet metal fabrication workflow:

| Parameter | Capability Range | Notes |

| :———————- | :———————————– | :————————————- |

| Material Thickness | 0.5 mm – 6.0 mm | Varies by material type |

| Cutting Tolerance | ± 0.1 mm | Laser/Punching |

| Bend Tolerance | ± 0.5° / ± 0.2 mm | Depends on part geometry |

| Minimum Bend Radius | 0.8 x Material Thickness | Material dependent |

| Hole Diameter (Punch) | ≥ 0.8 mm | Material/thickness dependent |

| Surface Finishes | Anodizing, Powder Coating, Passivation, Brushing, Painting | Wide range of standards and colors |

Beyond core fabrication, Honyo integrates value-added services essential for complete component readiness. This includes precision hardware insertion (PEM® nuts, standoffs), robotic TIG/MIG welding for complex assemblies, rigorous in-process quality control using CMMs and vision systems, and final packaging tailored to client logistics. Our quality management system adheres to ISO 9001 standards, with documented inspection protocols for critical dimensions, material certifications, and finish requirements on every order. We prioritize rapid iteration cycles, typically offering prototype lead times of 5-7 working days for uncomplicated geometries, enabling faster design validation and time-to-market for our clients.

Partnering with Honyo Prototype provides OEMs and engineering firms with a single-source solution for custom metal parts where precision, material expertise, and responsive engineering support are non-negotiable. We bridge the gap between design concept and functional hardware, ensuring manufacturability, quality consistency, and supply chain efficiency for your most demanding sheet metal applications. Contact our engineering team to discuss optimizing your next custom metal part project.

Technical Capabilities

Shenzhen Honyo Prototype – Technical Capabilities in Sheet Metal Fabrication

At Shenzhen Honyo Prototype, we specialize in high-precision sheet metal fabrication for custom metal parts, serving industries ranging from industrial equipment to consumer electronics and telecommunications. Our integrated manufacturing capabilities in laser cutting, bending, and welding ensure tight tolerances, repeatable accuracy, and consistent quality across both prototyping and low-to-mid volume production runs.

Our laser cutting services utilize state-of-the-art CO₂ and fiber laser systems, capable of processing a wide range of conductive and non-conductive sheet metals. With maximum cutting areas of up to 1500 mm × 3000 mm and power outputs up to 4 kW, we achieve clean, burr-free edges with minimal heat-affected zones. This enables us to support intricate geometries and fine features, including slots, tabs, and registration details critical for downstream assembly.

Bending operations are performed on CNC-controlled press brakes equipped with automated tool changers and backgauging systems. These machines support air bending, bottoming, and coining methods, allowing flexibility in achieving precise angular accuracy and complex 3D forms. Our bending capacity covers material thicknesses from 0.5 mm to 6.0 mm, with maximum bend lengths of 3000 mm. Springback compensation and in-process measurement ensure angular tolerances are consistently maintained.

Welding capabilities include TIG (GTAW), MIG (GMAW), and spot welding, supporting both ferrous and non-ferrous materials. Our certified welders follow AWS D1.1 and ISO 3834 standards, with optional post-weld treatments such as grinding, polishing, and stress relieving available. We routinely fabricate enclosures, brackets, chassis, and structural frames requiring full weld penetration, cosmetic finishes, or hermetic seals.

All processes are supported by in-house engineering review, DFM analysis, and first-article inspection reports (FAIR). We maintain ISO 9001:2015 certification and employ coordinate measuring machines (CMM) and optical comparators for dimensional verification.

The following table outlines key technical specifications and tolerances for our sheet metal fabrication services:

| Process | Material Options | Thickness Range (mm) | Tolerance | Max Part Size (mm) |

|—————–|————————————–|———————–|————————|————————|

| Laser Cutting | Carbon Steel, Stainless Steel, Aluminum, Galvanized Steel | 0.5 – 25 | ±0.1 mm (holes/slots), ±0.2 mm (overall) | 1500 × 3000 |

| CNC Bending | Carbon Steel, Stainless Steel, Aluminum | 0.5 – 6.0 | ±0.2° (angle), ±0.2 mm (linear) | 3000 (bend length) |

| Welding | Carbon Steel, Stainless Steel, Aluminum | 0.8 – 12 | ±0.5 mm (joint alignment) | Varies by joint design |

We support common sheet metal alloys including SUS304/SUS316, SPCC, SGCC, AL5052/AL6061, and others upon request. Secondary operations such as deburring, tapping, hardware insertion, and surface finishing (powder coating, anodizing, passivation) are also available in-house, enabling fully finished parts shipped ready for assembly.

From CAD to Part: The Process

Sheet Metal Fabrication Production Process: From CAD to Finished Part

At Shenzhen Honyo Prototype, our sheet metal fabrication workflow is engineered for speed, precision, and zero-defect delivery. We transform your CAD files into certified custom metal parts through a rigorously controlled sequence: AI-assisted quoting, collaborative Design for Manufacturability (DFM) analysis, and integrated production. This standardized approach ensures technical feasibility, cost efficiency, and on-time shipment for low-to-mid volume prototypes and production runs.

AI-Powered Quoting for Accelerated Turnaround
Upon CAD file submission (STEP, DWG, or native formats), our AI quoting engine instantly evaluates geometric complexity, material requirements, and process sequencing. This system cross-references real-time machine availability, material costs, and historical production data to generate accurate cost and lead time estimates within 24–72 hours. Unlike manual methods, the AI identifies potential high-cost features early—such as excessive bends or tight tolerances—enabling proactive client consultation before order commitment. All quotes include a preliminary process plan detailing laser cutting, bending, and finishing stages.

Collaborative DFM Optimization
After quote acceptance, our engineering team conducts a rigorous DFM review using Siemens NX software. We analyze bend radii, hole-to-edge distances, material grain direction, and weld accessibility against ASME Y14.5 tolerancing standards. Critical findings—like undercuts risking tool interference or non-standard bend sequences increasing setup time—are documented in a formal DFM report with actionable revision suggestions. Clients receive this report within 3–5 business days, with virtual collaboration sessions to resolve conflicts. This phase reduces production errors by 65% and typically trims lead times by 15–20% through design simplification.

Integrated Production Execution
Approved designs move to our 12,000 sq ft facility, where integrated machinery executes the validated process plan. Laser cutting utilizes Amada LC-2415 AJ with ±0.1 mm positional accuracy, while bending employs CNC-controlled Press Brakes (e.g., TruBend 5130) with auto-tool changers for complex geometries. All processes adhere to our documented work instructions, with in-process inspections at critical stages using CMMs and optical comparators. Material specifications are strictly enforced per the table below:

| Material Type | Thickness Range | Typical Tolerance (Bending) |

|———————|—————–|—————————–|

| Aluminum 5052/6061 | 0.5–6.0 mm | ±0.15 mm |

| Cold Rolled Steel | 0.8–10.0 mm | ±0.20 mm |

| Stainless Steel 304 | 0.5–8.0 mm | ±0.15 mm |

Final parts undergo first-article inspection per AS9102 standards, including dimensional verification, surface finish checks, and deburring validation. We ship fully packaged components with a certificate of conformance, traceable to raw material mill certs. This closed-loop workflow—from AI-driven quoting to metrology-backed delivery—ensures your custom metal parts meet functional requirements while optimizing time-to-market. Honyo Prototype’s commitment to process transparency and technical rigor makes us the trusted partner for precision sheet metal solutions.

Start Your Project

Start Your Custom Metal Part Project with Shenzhen Honyo Prototype

When it comes to precision sheet metal fabrication, selecting the right partner early in your product development cycle can significantly impact time-to-market, cost efficiency, and final part performance. At Shenzhen Honyo Prototype, we specialize in low-volume, high-precision custom metal parts tailored to your exact specifications. Whether you’re prototyping a new enclosure, fabricating brackets, or developing complex chassis components, our advanced manufacturing capabilities and engineering expertise ensure your design is translated into reality—accurately and on schedule.

We understand that every project begins with a concept. That’s why our engineering team collaborates closely with clients from the initial design phase, offering Design for Manufacturability (DFM) feedback to optimize material usage, reduce assembly complexity, and lower production costs. Our facility in Shenzhen is equipped with state-of-the-art laser cutting, CNC punching, bending, and welding equipment, enabling us to handle a wide range of materials including stainless steel, aluminum, carbon steel, and galvanized sheet metal.

To get started, simply share your 2D drawings or 3D models with us. We accept common file formats such as STEP, IGES, DWG, DXF, and PDF. Our team will review your design, provide a detailed quotation within 12 hours, and offer technical suggestions to enhance manufacturability. With a typical turnaround time of 3–7 working days for prototypes and 7–12 days for small production batches, we support fast iteration without compromising quality.

Below are the key technical specifications we support in our sheet metal fabrication services:

| Parameter | Capability Range |

|————————-|————————————————–|

| Material Thickness | 0.5 mm – 6.0 mm |

| Max Part Size | 1500 mm × 3000 mm |

| Tolerance | ±0.1 mm (standard), tighter upon request |

| Common Materials | SS304, SS316, AL6061, AL5052, SPCC, SGCC |

| Surface Finishes | Anodizing, powder coating, passivation, plating |

| Joining Methods | TIG/MIG welding, spot welding, riveting, tapping|

All parts undergo rigorous in-process and final inspections using precision measurement tools, including coordinate measuring machines (CMM), ensuring compliance with ISO 9001 standards.

Your project deserves more than just fabrication—it deserves partnership. Contact Susan Leo today to discuss your custom metal part requirements. Send your design files and project details to info@hy-proto.com, and receive expert guidance, a competitive quote, and a clear production plan within hours. Let Shenzhen Honyo Prototype be the foundation of your next innovation.