1
Joint and callout review
Confirm joint type, weld size and length, intermittent or continuous pattern, access, appearance, and applicable acceptance criteria.
Checkpoint
Ambiguous weld symbols resolved before fabrication.
Quality System
ISO 9001
Manufacturing Lead Time
Quoted by Scope
500+
Projects Completed
25+
Countries Served
25+
Years Experience
Dongguan
China Factory
Certified Quality & Compliance
Fabex operates a quality management system certified to GB/T 19001-2016 / ISO 9001:2015.
ISO 9001:2015 Certified
GB/T 19001-2016 quality management system
Joining capability
Weld process, fixture, finish, and inspection planned as one system
The correct welding route depends on alloy, thickness, joint design, access, strength, heat input, and the required cosmetic finish.
| Capability | Fabex scope | Engineering checkpoint |
|---|---|---|
| Processes and qualifications | MIG, TIG, and spot welding selected per joint requirement | Publish qualification claims only with the applicable standard and scope. |
| Assembly envelope | Reviewed with fixture, torch, inspection, and finishing access | Large size is only useful when every joint and inspection point remains accessible. |
| Distortion control | Joint design, balanced sequence, controlled heat input, fixturing, and intermediate checks | The plan is matched to flatness, squareness, gap, and interface requirements. |
| Cosmetic weld finish | Visible surfaces and grinding limits agreed on the drawing | Over-grinding can reduce strength or distort thin material, so finish expectations must be explicit. |
| Weld inspection | Method and acceptance criteria set by joint risk | The drawing or specification should define acceptance criteria, not only the inspection method. |
Not sure whether your part fits this capability?
Send your drawing, material, quantity, and delivery target. Our team will review the process route, manufacturability risks, and open questions before quotation.
Weld control
Control fit-up before heat makes defects expensive
Good weld quality starts with part accuracy, joint preparation, access, and a repeatable fixture.
2
Fixture and sequence plan
Establish datums, fit-up gaps, tack sequence, heat balance, and checkpoints for distortion-sensitive features.
Checkpoint
Assembly can be loaded, welded, and measured repeatably.
3
Welding and intermediate checks
Control fit-up and sequence while checking interfaces before they become inaccessible.
Checkpoint
Critical dimensions contained before final welding or grinding.
4
Finish and inspection
Apply only the specified grinding or blending, then perform dimensional and weld acceptance checks.
Checkpoint
Finished assembly released against drawing and agreed standard.
What changes your quoted cost
- Joint length and access
- Fixture complexity
- Heat-sensitive tolerances
- Cosmetic grinding and blending
- Inspection method and documentation
- Material thickness and weld process
How we plan your project
Distortion-controlled welded enclosure
See the commercial and engineering checkpoints Fabex uses to move this type of job from drawing review into controlled production.
Application
Drawing-defined sheet metal parts and assemblies
Material
Drawing-specified material and thickness
Quantity
Prototype through repeat production
Lead time
Confirmed after DFM and material review
Typical production challenge
A thin-sheet assembly required controlled mounting interfaces and a consistent visible weld finish.
Approach
Review joint callouts, establish fixture datums and sequence, inspect before finishing, and verify final assembly interfaces.
What you receive before release
Documented DFM findings, a proposed manufacturing route, quotation, and lead-time plan for your approval.
Welding questions
Sheet metal welding FAQs
Answers about process selection, distortion, appearance, and inspection.
How do you choose between MIG, TIG, and spot welding?+
Selection depends on alloy, thickness, joint type, access, strength, appearance, production rate, and whether the joint must be continuous. A drawing review identifies the practical route.
How should cosmetic weld requirements be specified?+
Mark visible zones, required profile, grinding or blending limits, finish direction, coating, and an approved appearance sample where possible. Terms such as “smooth” are too subjective by themselves.
How is welding distortion reduced?+
Useful controls include accurate fit-up, balanced joint design, fixtures, tack strategy, controlled sequence and heat input, intermittent welds where allowed, and intermediate dimensional checks.
Can welded assemblies be leak tested?+
Leak testing may be possible, but the medium, pressure or vacuum, duration, allowable leakage, port design, safety requirements, and reporting must be specified during quotation.
What weld inspection records can accompany an order?+
Available records depend on the process and requirement. Define the applicable standard, acceptance criteria, sampling or full-inspection need, and required report format before the quote is finalized.
Should the drawing include weld symbols and an acceptance standard?+
Yes. Identify joint type, weld size and length, intermittent spacing, side, contour, finish, and the applicable acceptance criteria. Clear symbols prevent the shop from interpreting vague notes such as “weld all around” differently from the designer.
Weldment DFM
Reduce fixture complexity and heat distortion
Joint geometry should locate the parts, allow welding access and keep heat away from critical cosmetic or dimensional features.
View the complete sheet metal DFM guideSelf-location
Use tabs and slots where appropriate so parts locate consistently before tack welding.
Tool access
Check perpendicular access for weld torches, spot-weld tips, clamps and post-weld finishing tools.
Heat strategy
Balance weld length and sequence; add stiffness or temporary restraint where large panels may oil-can.
Customer Perspective
Trust is earned in the next order
B2B customers often give brief, practical feedback and show their trust through the next project.
Selected customers
- Huawei
Full production programs, repeat orders, and multi-year supply — not one-off samples. References available for your sector on request.
Trust shown through repeat work
In contract manufacturing, the clearest reward is often another drawing, another production order, or a larger scope.
Confidential by default
We do not publish a customer's name, product, drawing or project details without written permission. That is not a lack of proof - it is how contract manufacturing works, and it is the same discretion we apply to your designs.
Free Design Review & Quote Drawing and requirement review Free design optimization review No obligation, no hidden fees
Ready for Your Custom Sheet Metal Fabrication?
Send your drawings and requirements for an engineering review, project-specific quotation, and manufacturing plan.