All Categories
-
Agriculture
-
Health-Care
-
Environment
-
Construction-Real-Estate
-
Tools-Hardware
-
Home-Garden
-
Furniture
-
Luggage-Bags-Cases
-
Medical-devices-Supplies
-
Gifts-Crafts
-
Sports-Entertainment
-
Food-Beverage
-
Vehicles-Transportation
-
Power-Transmission
-
Material-Handling
-
Renewable-Energy
-
Safety
-
Testing-Instrument-Equipment
-
Construction-Building-Machinery
-
Pet-Supplies
-
Personal-Care-Household-Cleaning
-
Vehicle-Accessories-Electronics-Tools
-
School-Office-Supplies
-
Packaging-Printing
-
Mother-Kids-Toys
-
Business-Services
-
Commercial-Equipment-Machinery
-
Apparel-Accessories
-
Security
-
Shoes-Accessories
-
Vehicle-Parts-Accessories
-
Jewelry-Eyewear-Watches-Accessories
-
Lights-Lighting
-
Fabric-Textile-Raw-Material
-
Fabrication-Services
-
Industrial-Machinery
-
Consumer-Electronics
-
Electrical-Equipment-Supplies
-
Electronic-Components-Accessories-Telecommunications
-
Home-Appliances
-
Beauty
-
Chemicals
-
Rubber-Plastics
-
Metals-Alloys
- Masonry Materials
- Curtain Walls & Accessories
- Earthwork Products
- Fireproofing Materials
- Heat Insulation Materials
- Plastic Building Materials
- Building Boards
- Soundproofing Materials
- Timber
- Waterproofing Materials
- Balustrades & Handrails
- Bathroom & Kitchen
- Flooring & Accessories
- Tiles & Accessories
- Door, Window & Accessories
- Fireplaces & Stoves
- Floor Heating Systems & Parts
- Stairs & Stair Parts
- Ceilings
- Elevators & Escalators
- Stone
- Countertops, Vanity Tops & Table Tops
- Mosaics
- Metal Building Materials
- Multifunctional Materials
- Ladders & Scaffoldings
- Mouldings
- Corner Guards
- Decorative Films
- Formwork
- Building & Industrial Glass
- Other Construction & Real Estate
- Wallpapers/Wall panels
- HVAC System & Parts
- Outdoor Facilities
- Prefabricated Buildings
- Festive & Party Supplies
- Bathroom Products
- Household Sundries
- Rain Gear
- Garden Supplies
- Household Cleaning Tools & Accessories
- Lighters & Smoking Accessories
- Home Storage & Organization
- Household Scales
- Smart Home Improvement
- Home Textiles
- Kitchenware
- Drinkware & Accessories
- Dinnerware, Coffee & Wine
- Home Decor
- Golf
- Fitness & Body Building
- Amusement Park Facilities
- Billiards, Board Game,Coin Operated Games
- Musical Instruments
- Outdoor Affordable Luxury Sports
- Camping & Hiking
- Fishing
- Sports Safety&Rehabilitation
- Ball Sports Equipments
- Water Sports
- Winter Sports
- Luxury Travel Equipments
- Sports Shoes, Bags & Accessories
- Cycling
- Other Sports & Entertainment Products
- Artificial Grass&Sports Flooring&Sports Court Equipment
- Scooters
- Food Ingredients
- Honey & Honey Products
- Snacks
- Nuts & Kernels
- Seafood
- Plant & Animal Oil
- Beverages
- Fruit & Vegetable Products
- Frog & Escargot
- Bean Products
- Egg Products
- Dairy Products
- Seasonings & Condiments
- Canned Food
- Instant Food
- Baked Goods
- Other Food & Beverage
- Meat & Poultry
- Confectionery
- Grain Products
Safety
- Feminie Care
- Hair Care & Styling
- Body Care
- Hands & Feet Care
- Hygiene Products
- Men's Grooming
- Laundry Cleaning Supplies
- Travel Size & Gift Sets
- Room Deodorizers
- Other Personal Care Products
- Pest Control Products
- Special Household Cleaning
- Floor Cleaning
- Kitchen & Bathroom Cleaning
- Oral Care
- Bath Supplies
- Yellow Pages
- Correction Supplies
- Office Binding Supplies
- Office Cutting Supplies
- Board Erasers
- Office Adhesives & Tapes
- Education Supplies
- Pencil Cases & Bags
- Notebooks & Writing Pads
- File Folder Accessories
- Calendars
- Writing Accessories
- Commercial Office Supplies
- Pencil Sharpeners
- Pens
- Letter Pad/Paper
- Paper Envelopes
- Desk Organizers
- Pencils
- Markers & Highlighters
- Filing Products
- Art Supplies
- Easels
- Badge Holder & Accessories
- Office Paper
- Printer Supplies
- Book Covers
- Other Office & School Supplies
- Stationery Set
- Boards
- Clipboards
- Stamps
- Drafting Supplies
- Stencils
- Electronic Dictionary
- Books
- Map
- Magazines
- Calculators
- Baby & Toddler Toys
- Educational Toys
- Classic Toys
- Dress Up & Pretend Play
- Toy Vehicle
- Stuffed Animals & Plush Toys
- Outdoor Toys & Structures
- Balloons & Accessories
- Baby Food
- Children's Clothing
- Baby Supplies & Products
- Maternity Clothes
- Kids Shoes
- Baby Care
- Novelty & Gag Toys
- Dolls & Accessories
- Puzzle & Games
- Blocks & Model Building Toys
- Toddler Clothing
- Baby Clothing
- Kids' Luggage & Bags
- Arts, Crafts & DIY Toys
- Action & Toy Figures
- Baby Appliances
- Hobbies & Models
- Remote Control Toys
- Promotional Toys
- Pregnancy & Maternity
- Hygiene Products
- Kid's Textile&Bedding
- Novelty & Special Use
- Toy Weapons
- Baby Gifts
- Baby Storage & Organization
Security
- Auto Drive Systems
- ATV/UTV Parts & Accessories
- Marine Parts & Accessories
- Other Auto Parts
- Trailer Parts & Accessories
- Auto Transmission Systems
- Train Parts & Accessories
- Universal Parts
- Railway Parts & Accessories
- Auto Brake Systems
- Aviation Parts & Accessories
- Truck Parts & Accessories
- Auto Suspension Systems
- Auto Lighting Systems
- New Energy Vehicle Parts & Accessories
- Auto Steering Systems
- Wheels, Tires & Accessories
- Bus Parts & Accessories
- Auto Performance Parts
- Cooling System
- Go-Kart & Kart Racer Parts & Accessories
- Air Conditioning Systems
- Heavy Duty Vehicle Parts & Accessories
- Auto Electrical Systems
- Auto Body Systems
- Auto Engine Systems
- Container Parts & Accessories
- Motorcycle Parts & Accessories
- Refrigeration & Heat Exchange Equipment
- Machine Tool Equipment
- Food & Beverage Machinery
- Agricultural Machinery & Equipment
- Apparel & Textile Machinery
- Chemical Machinery
- Packaging Machines
- Paper Production Machinery
- Plastic & Rubber Processing Machinery
- Industrial Robots
- Electronic Products Machinery
- Metal & Metallurgy Machinery
- Woodworking Machinery
- Home Product Manufacturing Machinery
- Machinery Accessories
- Environmental Machinery
- Machinery Service
- Electrical Equipment Manufacturing Machinery
- Industrial Compressors & Parts
- Tobacco & Cigarette Machinery
- Production Line
- Used Industrial Machinery
- Electronics Production Machinery
- Other Machinery & Industrial Equipment
- Camera, Photo & Accessories
- Portable Audio, Video & Accessories
- Television, Home Audio, Video & Accessories
- Video Games & Accessories
- Mobile Phone & Accessories
- Electronic Publications
- Earphone & Headphone & Accessories
- Speakers & Accessories
- Smart Electronics
- TV Receivers & Accessories
- Mobile Phone & Computer Repair Parts
- Chargers, Batteries & Power Supplies
- Used Electronics
- VR, AR, MR Hardware & Software
- Projectors & Presentation Equipments
- Other Consumer Electronics
- Cables & Commonly Used Accessories
- Computer Hardware & Software
- Displays, Signage and Optoelectronics
- Discrete Semiconductors
- Wireless & IoT Module and Products
- Telecommunications
- Connectors, Terminals & Accessories
- Development Boards, Electronic Modules and Kits
- Circuit Protection
- Sensors
- Isolators
- Audio Components and Products
- Integrated Circuits
- Power Supplies
- Relays
- RF, Microwave and RFID
- Electronic Accessories & Supplies
- Passive Components
- PCB & PCBA
- Air Quality Appliances
- Home Appliance Parts
- Heating & Cooling Appliances
- Small Kitchen Appliances
- Laundry Appliances
- Water Heaters
- Water Treatment Appliances
- Refrigerators & Freezers
- Personal Care & Beauty Appliances
- Major Kitchen Appliances
- Cleaning Appliances
- Second-hand Appliances
- Smart Home Appliances
- Other Home Appliances
Beauty
- Energy Chemicals
- Inorganic Chemicals
- Basic Organic Chemicals
- Agrochemicals
- Admixture & Additives
- Catalysts & Chemical Auxiliary Agents
- Pigments & Dyestuff
- Coating & Paint
- Daily Chemicals
- Polymer
- Organic Intermediate
- Adhesives & Sealants
- Chemical Waste
- Biological Chemical Products
- Surface Treatment Chemicals
- Painting & Coating
- Chemical Reagents
- Flavor & Fragrance
- Non-Explosive Demolition Agents
- Other Chemicals
- Custom Chemical Services
Laser Welding and Corrosion Resistance: What You Need to Know
szhaiwei
2025-09-03
When selecting a joining method for metal components, especially in demanding environments, the corrosion resistance of the weld is a key factor. For applications in automotive, marine, medical, or food processing industries, understanding how laser welding affects long-term durability is essential.
How Laser Welding Affects the Weld Zone
A laser welding machine produces a narrow, deep weld with a small heat-affected zone (HAZ). Because the process applies concentrated heat quickly, there is less time for grain growth and microstructural changes compared to traditional arc welding. This typically results in a more uniform microstructure, which can support better corrosion resistance—especially in stainless steel and aluminum alloys.
Material Compatibility Matters
The base material plays a major role in corrosion performance. For example, laser-welded 304 or 316 stainless steel generally maintains good resistance to oxidation and pitting, provided the shielding gas (usually argon or nitrogen) is applied correctly during welding. Incomplete shielding can lead to oxidation, porosity, or chromium depletion at the weld surface, which may reduce corrosion resistance.
Surface Finish and Post-Weld Treatment
The smooth, consistent bead produced by a laser welding machine often requires little or no finishing. However, in highly corrosive environments, post-weld treatments like passivation (for stainless steel) or polishing can further enhance the weld’s resistance to rust and chemical attack. Avoid mechanical grinding if possible, as it can embed contaminants or damage the passive layer.
Joint Design and Cleanliness
Proper joint fit-up and cleanliness are critical. Gaps or misalignment can trap moisture and lead to crevice corrosion. Ensure parts are free of oil, oxide, or residue before welding, as contamination increases the risk of defects that compromise long-term performance.
Real-World Performance
In practice, laser-welded joints often outperform conventional welds in corrosion tests due to their consistency and low distortion. However, performance depends on correct parameter setup and process control.
For buyers, the key is to work with suppliers who understand material behavior and can demonstrate weld quality through testing. When applied correctly, laser welding produces strong, clean welds with reliable corrosion resistance.
REPORT