Sheet Metal Fabrication
Laser cutting, bending, welding and assembly for custom sheet metal parts, brackets, covers and enclosures.
Explore Sheet Metal FabricationIntegrated Manufacturing
More Than Machining.One Controlled
Manufacturing Route.
Sheet metal fabrication, EDM, precision grinding, heat treatment and surface finishing—coordinated from drawing review to final inspection.
In-house production and qualified processing partners.Final acceptance managed by OUJI.
- 01Machining
- 02Heat Treatment
- 03EDM / Grinding
- 04Surface Finishing
- 05Final Inspection
Drawing requirements remain connected through every operation.
Supporting Processes for Complete Part Delivery
Select a process to review its applications, control points and available documentation.
EDM Machining
Wire and sinker EDM support for narrow slots, internal profiles, hardened materials and difficult-to-machine features.
Explore EDM MachiningPrecision Grinding
Controlled finishing for critical dimensions, flatness, concentricity and surface requirements.
Explore Precision GrindingHeat Treatment
Heat-treatment coordination with allowance planning, distortion review and post-process dimensional verification.
Explore Heat TreatmentSurface Finishing
Anodizing, plating, passivation, black oxide, powder coating and other drawing-specified finishes.
Explore Surface FinishingOne Drawing. One Controlled Workflow.
Secondary operations can introduce distortion, tolerance loss, cosmetic defects and documentation gaps. OUJI manages the complete route so requirements are not lost between separate processes.
- 01
Drawing Review
Critical dimensions, material conditions, finish requirements and inspection standards are identified.
- 02
Process Planning
Machining allowances, masking areas, datum strategy and process sequence are defined.
- 03
Controlled Processing
Parts are completed in-house or through qualified processing partners following the approved specification.
- 04
Final Acceptance
Dimensions, appearance, hardness, finish requirements and required documentation are reviewed before shipment.
Processes Planned as One Project
Three common examples show where sequence, allowance and final verification matter.
Hardened Turned Components
Allowance planning and dimensional recovery for critical diameters and sealing features.
- CNC Turning
- Heat Treatment
- Precision Grinding
- Final Inspection
Sheet Metal Assemblies
Drawing revision, welding deformation and coating appearance managed through one route.
- Laser Cutting
- Bending
- Welding
- Powder Coating
- Assembly Inspection
Complex Tool-Steel Parts
Process sequencing for hardened materials, narrow features and tight final dimensions.
- CNC Machining
- Heat Treatment
- EDM
- Precision Grinding
- Final Inspection
Checked Before and After Secondary Processing
Process requirements and acceptance criteria are reviewed across the complete route.
Before Processing
- Material and specification confirmation
- Machining and grinding allowances
- Masking and protected areas
- Critical datum identification
During Processing
- Qualified partner selection
- Process requirement communication
- Lot and document traceability
- Exception and progress tracking
After Processing
- Critical dimensional inspection
- Visual and cosmetic inspection
- Hardness or coating verification
- Final acceptance before shipment
Available documentation may include material certificates, heat-treatment records, hardness results, coating certificates and dimensional inspection reports, depending on project requirements.
Documentation availability is confirmed during quotation review.Fabrication & Secondary Process FAQ
Direct answers about responsibility, distortion control and project documentation.
Do you perform every process in-house?
Depending on the project, processes may be completed in-house or through qualified processing partners. OUJI remains responsible for specification communication, process coordination and final acceptance.
Can OUJI manage machining and secondary processes under one order?
Yes. Send the complete drawing and requirements, and our engineering team will review the full manufacturing route before quotation.
How do you control distortion after heat treatment?
We review the material condition, process sequence, machining allowance and critical dimensions before production, followed by dimensional verification after treatment.
What documents can be supplied?
Depending on project requirements, available records may include material certificates, heat-treatment reports, hardness results, coating certificates and dimensional inspection reports.