Precision Sheet Metal Welding: TIG, MIG & Advanced Laser Welding | Doing Metal
Explore our professional welding capabilities. Learn how our upgrade to Laser Welding technology improved efficiency by 30% for critical railway projects. High-precision welding solutions from Ningbo.
WELDING
Violet Gao
4/7/20262 min read


Precision Welding:
The Core of Structural Integrity at Doing Metal
In custom metal fabrication, a perfect cut is only half the battle. The true strength of a component lies in the quality of its joins. At Doing Metal, we combine 10 years of master craftsmanship with cutting-edge technology to provide welding solutions that are as strong as they are seamless.
Our Core Welding Technologies
TIG Welding (Tungsten Inert Gas):
The Benefit: Offers the highest level of control and the cleanest aesthetics. Ideal for thin gauge materials where appearance is paramount.
Best For: Library furniture, medical enclosures, and visible stainless steel parts.
MIG Welding (Metal Inert Gas):
The Benefit: High-speed and extremely cost-effective for thicker structural components.
Best For: Heavy-duty livestock equipment and large structural frames.
Laser Welding (The Game Changer):
The Benefit: Minimal heat-affected zone (HAZ), zero distortion, and speeds up to 5-10x faster than traditional methods.
Best For: High-precision brackets and complex geometries where dimensional accuracy is critical.
Case Study: Upgrading to Laser Welding for a UK Railway Project
One of our most significant success stories involved a high-precision bracket project for the UK Railway sector.
The Challenge: The client required hundreds of stainless steel brackets with complex internal joins. Using traditional TIG welding caused "heat warping" (deformation), which meant 15% of the parts failed to meet the strict ±0.2mm tolerance requirements.
The Doing Metal Solution: We transitioned the project to our Handheld Laser Welding system.
Precision Control: The concentrated laser beam localized the heat so effectively that there was zero warping of the thin-wall sections.
Efficiency Gain: We reduced the post-weld grinding time by 80% because the laser produced a nearly invisible, flat bead.
The Result: Production efficiency increased by 30%, and 100% of the parts passed the final QC check. The client was so impressed they moved their entire bracket production line to our Ningbo facility.
Why Welding Quality Matters for Your Business
Dimensional Accuracy: We use custom welding fixtures to ensure every part is identical to your CAD model.
Cleanliness: We offer professional Pickling and Passivation after welding to ensure your stainless steel remains rust-free at the weld joints.
Strength Testing: For structural parts like livestock feeding systems, we ensure deep penetration welds that can withstand heavy vibrations and loads.
Do you need other related upstream and downstream processes?
Does welding require surface treatment? Check out our [Powder Coating Guide]
Do welded parts require high-precision cutting? Learn about the advantages of our [TRUMPF Laser Cutting] service.




Laser Welding Full Welding
TIG Welding Piont Welding
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