What Makes a High-Quality Welding Service?
Metal fabrication plays an important role in many industries, from automotive manufacturing to construction and machinery production. Welding...
INTRODUCTION
Welding is a process that involves joining two or more pieces of metal by melting and fusing them together. Depending on the project you are looking to complete, choosing the right process is essential if you want to avoid issues such as corrosion, weaker bonds, or even a total failure in the binding of the weld. There are variety of welding methods:
- MIG welding
- TIG welding
- Spot welding
- Robotic welding
- Laser welding
TYPES OF WELDING & FABRICATION SERVICES
Nhat Nam Mechanical Company specializes in providing high quality welding services, meeting all technical requirements from simple to complex. With a team of experienced technicians and modern equipment, we are committed to providing accurate, durable and aesthetic welds, in accordance with the highest safety standards. Nhat Nam provides a variety of welding solutions, including TIG, MIG, arc welding and other advanced technologies, serving many large industries such as construction, shipbuilding and mechanical manufacturing. We are always ready to advise and support customers with quick service, ensuring optimal progress and quality.
Metal Inert Gas (MIG) welding
Is a type of arc welding that uses a consumable wire electrode to create a weld. The wire electrode is continuously fed into the weld area, and a shielding gas is used to protect the weld from the atmosphere. The shielding gas can be inert gases, such as argon or helium, or semi-inert gases, such as carbon dioxide.
Tungsten Inert Gas (TIG) welding
Is an arc welding process that uses a non-consumable tungsten electrode to produce the weld. The weld area and electrode are protected from oxidation or other atmospheric contamination by an inert shielding gas. The shielding gas is typically argon or helium. It is a good choice for welding thin materials and for welding in confined spaces
Spot welding
Is a resistance welding process that joins two or more metal sheets together by applying pressure and heat from an electric current to the weld area. The size and strength of the weld depends on the thickness of the metal sheets, the amount of current, and the duration of the weld. Spot welds are typically small and round, but they can be made larger and elongated to accommodate different joint designs
Robotic welding
Is a highly advanced version of automated welding, in which machines conduct the welding, but welders still control and supervise the process. The use of robotic technology allows for precise and quick results, less waste, and greater safety
Laser welding
Laser welding is a precise process of fusing metal parts using a beam of laser light. It has found numerous applications across most industries, particularly in the automation of small-component welding, where tight control means there’s no need for cleanup. This is most useful in the automotive, aerospace, and electronics sectors, where precision and efficiency are the biggest driving factors.
CAPABILITIES
At Nhat Nam, we offer a wide range of welding and fabrication services to custom components to the OEM projects, consumer Products, and laboratory supply industries.
- Materials: We work with aluminum, carbon steel, specialty alloys, stainless steel, and titanium, among others.
- Structural Shapes: thickness sheet metals, angles, beams, channels, tubes, and other options.
- Services: We provide comprehensive services for sheet metal processing, welding and fabrication, and more. We also handle testing and finishing processes, including dye penetrant testing, passivation, and specialty cleaning processes.
Finishes
Applying a finish to your sheet cut parts can not only improve their cosmetic appeal but also provide surface protection and increased performance. Below you will find some of the post-processing options and finishes we offer:
Adhesives and Coating
- Type II Anodize
- Type III Hard coat
- Type III w/ PTFE.
Metal Plating
- Electroless Nickel
- Zinc
- Gold
- Silver
Adhesives and Coatins
- Black Oxide
- Dry Film Lubricants
- Powder Coating
- Wet Paint
Conversion and Pretreatments
- Chem Film
- Chromate
- Conversion Coating
- Heat Treat
- Case Harden
- Passivation
- Pickle and Oil
- Bead Blasting
- Electropolishing
- Etching
Design Guides
File Preparation Reference Sheet
File Types
Use vector files such as .DXF for 20 designs as well as for artwork such as engravings and part markings
Recommended 3D design formats:
- .STEP
- .STP
- .SLDPRT
- .PRT
File Optimization
Check that your design file does NOT contain:
- Duplicate or overlapping lines, curves, points, etc.
- Open curves or broken paths
- Lines with a length of less than zero
- Extraneous curves preventing the detection of boundaries
- Stray points or empty objects
Design Guidelines Reference Sheet
Tolerances
- Design for edge to edge tolerances of +/- 0.010" nominal on the top-cut surface
- Designate which is the top face on your drawing
Kerf
- Don't forget to account for the thickness for laser cutting: 0.008-0.012"
- Kerf width generally becomes larger as the material thickness increases
Distance Between Features
MT = Material Thickness
- Minimum Hole to Edge Distance = 2X MT or 0.125”, whichever is smaller
- Minimum Hole to Hole Distance = 6X MT or 0.125”, whichever is smaller
- Minimum Relief Cuts = 0.010” or 1X MT, whichever is greater
- Minimum Corner Fillets = 0.5X MT or 0.125”, whichever is smaller
- Minimum Tab Thickness = 0.063” or 1X MT, whichever is greater
- Minimum Slot Thickness = 0.040” or 1X MT, whichever is greater
FAQs
Advantages of sheet metal welding?
Sheet metal welding offers benefits such as strong and durable joints, versatility in joining different materials, and the ability to create complex shapes and structures. It’s essential for manufacturing various products.
How long does sheet metal welding typically take for a project?
The duration of sheet metal welding varies depending on the complexity and size of the project. Small projects may be completed quickly, while larger or intricate ones may take more time. Contact us for estimated lead times.
Can sheet metal welding be used for projects with specific design requirements?
Yes, sheet metal welding is well-suited for projects with precise design requirements. It allows for the creation of custom designs, shapes, and structures, making it ideal for tailored solutions.
How can I request a quote for sheet metal welding services?
Requesting a quote is simple. Visit our Contact page on the website and fill out the inquiry form, providing details about your project’s welding needs. We’ll respond promptly with a competitive quote.
Specifications
| Gauge | Round Tube | Pipe | Rectangular Tube | Square Tube | ||||
|---|---|---|---|---|---|---|---|---|
| in | mm | in | mm | in | mm | in | mm | |
| 3 | 0.2391 | 6.07 | ||||||
| 4 | 0.2242 | 5.69 | ||||||
| 5 | 0.2092 | 5.31 | ||||||
| 6 | 0.1943 | 4.94 | 0.1620 | 4.11 | ||||
| 7 | 0.1793 | 4.55 | 0.1875 | 4.76 | 0.1443 | 3.67 | ||
| 8 | 0.1644 | 4.18 | 0.1681 | 4.27 | 0.1719 | 4.37 | 0.1285 | 3.26 |
| 9 | 0.1495 | 3.80 | 0.1532 | 3.89 | 0.1563 | 3.97 | 0.1144 | 2.91 |
| 10 | 0.1345 | 3.42 | 0.1382 | 3.51 | 0.1406 | 3.57 | 0.1019 | 2.59 |
| 11 | 0.1196 | 3.04 | 0.1233 | 3.13 | 0.1250 | 3.18 | 0.0907 | 2.30 |
| 12 | 0.1046 | 2.66 | 0.1084 | 2.75 | 0.1094 | 2.78 | 0.0808 | 2.05 |
| 13 | 0.0897 | 2.28 | 0.0934 | 2.37 | 0.0940 | 2.39 | 0.0720 | 1.83 |
| 14 | 0.0747 | 1.90 | 0.0785 | 1.99 | 0.0781 | 1.98 | 0.0641 | 1.63 |
| 15 | 0.0673 | 1.71 | 0.0710 | 1.80 | 0.0700 | 1.78 | 0.0570 | 1.45 |
| 16 | 0.0598 | 1.52 | 0.0635 | 1.61 | 0.0625 | 1.59 | 0.0508 | 1.29 |
| 17 | 0.0538 | 1.37 | 0.0575 | 1.46 | 0.0560 | 1.42 | 0.0450 | 1.14 |
| 18 | 0.0478 | 1.21 | 0.0516 | 1.31 | 0.0500 | 1.27 | 0.0403 | 1.02 |
| 19 | 0.0418 | 1.06 | 0.0456 | 1.16 | 0.0440 | 1.12 | 0.0360 | 0.91 |
| 20 | 0.0359 | 0.91 | 0.0396 | 1.01 | 0.0375 | 0.95 | 0.0320 | 0.81 |
| 21 | 0.0329 | 0.84 | 0.0366 | 0.93 | 0.0340 | 0.86 | 0.0280 | 0.71 |
| 22 | 0.0299 | 0.76 | 0.0336 | 0.85 | 0.0310 | 0.79 | 0.0250 | 0.64 |
| 23 | 0.0269 | 0.68 | 0.0306 | 0.78 | 0.0280 | 0.71 | 0.0230 | 0.58 |
| 24 | 0.0239 | 0.61 | 0.0276 | 0.70 | 0.0250 | 0.64 | 0.0200 | 0.51 |
| 25 | 0.0209 | 0.53 | 0.0247 | 0.63 | 0.0220 | 0.56 | 0.0180 | 0.46 |
| 26 | 0.0179 | 0.45 | 0.0217 | 0.55 | 0.0190 | 0.48 | 0.0170 | 0.43 |
| 28 | 0.0149 | 0.38 | 0.0187 | 0.47 | 0.0160 | 0.41 | 0.0126 | 0.32 |
Why Chose Us?
Expertise
Our dedicated experts work closely with you every step of the way to design, develop, and deliver the precision-crafted part and customized product.
Vetted Network
With ISO 9001 Certification and ANSI Certification, only the top shops that apply to become network suppliers make it through our qualification process.
Expert help
Our team of Application Engineers and Process Specialists are available to support you and provide answers to all of your fabrication and manufacturability questions.
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