High carbon steel refers to a type of carbon steel with a carbon (c) content higher than 0.6%. It is more prone to hardening compared to medium carbon steel and forms high-carbon martensite, which is …
Exploring the Challenges of Welding High Carbon Steel Read More »
1. Method and Technique of Spot Welding. 1.1 Spot Welding Method. Spot welding is generally divided into two categories: double-sided spot welding and single-sided spot welding. In double-sided spot welding, electrodes provide power to the …
Master Spot Welding: Tips and Techniques for Precision Bonding Read More »
Introduction Definition of spot welding Spot welding refers to a welding method that uses a cylindrical electrode to form a welding point between the contact surfaces of two overlapping workpieces during welding. During spot welding, …
As high-strength welding structural steel, the carbon content of this type of steel is limited to a low level. Generally, the mass fraction of carbon is less than 0.18%, and the weldability requirements are also …
Welding Basics of Low Carbon Quenched and Tempered Steel Read More »
Principle and development Variable polarity plasma arc welding (VPPAW), namely asymmetric square wave AC plasma arc welding, is a new efficient welding process developed for aluminum and its alloys. This welding technique combines the benefits …
In industrial production, equipment that runs continuously may experience leaks for various reasons, such as leaks in pipes, valves, containers, etc. These leaks can negatively impact production stability, reduce product quality, and result in environmental …
Master the 6 Must-Know Welding Leak Stoppage Techniques Read More »
Zigzag method When this method is used for welding, the end of the welding rod is zigzagged and continuously swings and moves forward, and stops for a moment on both sides. The purpose of the …
Cemented carbide is a general name of alloy prepared by powder metallurgy from 9 kinds of metal carbides of IVa, Va and VIa groups in the periodic table of elements and iron group metals such …
Is electric soldering iron welding with tin toxic? Some netizens complained that they worked in a PCB factory and used an electric soldering iron to weld tin for a whole year. They felt uncomfortable in …
Is Electric Soldering Iron Toxic? Here’s What You Need to Know Read More »
The overlay welding process has high efficiency and low equipment cost , and is widely used in the manufacturing and repair of parts, the modification of material surfaces, and the flexible production of small and …
Mastering Double-Wire Cladding: The Key to Unlocking Additive Manufacturing Read More »
Causes of fatigue failure of welded structures The causes of fatigue failure of welded structures mainly include the following aspects: ① Objectively, the static load-bearing capacity of welded joints is typically not weaker than that …
Understanding Fatigue Strength in Welded Structures Read More »
Hot wire TIG welding is a high-quality, efficient, and energy-saving welding process that was developed based on traditional TIG welding in 1956. The basic principle is to heat the welding wire to a certain preheating …
A Beginner’s Guide to Hot Wire TIG Welding: Characteristics and Classifications Read More »
The welding quality directly affects the performance and safety of the boiler structure. If the welding quality of the boiler is not good, leakage and even explosion accidents may occur, causing heavy losses to people’s …
Prevent Boiler Welding Defects with these Expert Tips Read More »
Abstract: Powder Pool Coupled Active TIG Welding is a new, efficient welding method that can be used to weld almost all metals by selecting the appropriate active agent powder. This study focuses on the AC …
Powder Melt Pool Coupled Active Tig Welding: How Much Do You Know? Read More »
Although aluminum and its alloys are widely used in welding important products, they are not without difficulties in actual welding production. Some of the main issues include porosity in the weld, hot cracks during welding, …
Cracks in Aluminum Alloy Welded Joints: Characteristics and Mechanism Analysis Read More »
1. Definition and classification of single-sided welding and double-sided forming 1.1 Definition of single side welding and double side forming Single-side welding and double-side forming is an essential method and skill for welders who are …
Mastering Single-Side Welding & Double-Side Forming Techniques Read More »
There are some welding problems when you use square and rectangular tubes. The welding process of square and rectangular tubes has always been a difficult step in the process flow of square and rectangular tubes. …
1. General requirements The stress transfer welding encompasses full penetration first-level welds that can handle all types of stress similarly to the base metal, fillet welds that primarily resist shear forces, and partial penetration second-level …
Master the Basics of Full Penetration First Level Weld Seam Welding Read More »
Safe use of oxygen cylinders Transportation Deposit Usage Before installing the pressure reducing valve, slowly open the cylinder valve, blow off any dust inside and outside the interface, install the pressure reducing valve, and then …
Why Do Oxygen Cylinders and Acetylene Cylinders Explode? Read More »
Summary The aluminum-steel composite structure is an effective method to achieve lightweight vehicles. To facilitate the industrial application of aluminum-steel friction stir welding technology, it is necessary to conduct a friction stir welding process test …
Effect of Rotation Speed on Properties of Aluminum/Steel Friction Stir Welding Joint Read More »
1. Summary of double-sided argon arc welding process Stainless steel storage tanks typically feature large volumes and thin-walled plates, making them atmospheric vessels. Manual electrode welding is the most commonly used welding process. However, this …
Double Side Argon Arc Welding Process for Stainless Steel Tank Read More »
Preface A specific model of solid rocket motor casing is made from 30CrMnSi high-strength steel, which is produced through a combination of spinning and vacuum electron beam welding. Vacuum electron beam welding offers a stable …
Arc Extinguishing Quality Control of Laser Welding Girth Weld (Study) Read More »
1. What is martensitic stainless steel? This refers to a type of stainless steel with a martensitic microstructure at room temperature and whose mechanical properties can be modified through heat treatment. As a general description, …
Perfecting Welding of Martensitic and Duplex Stainless Steel Read More »
CO2 gas shielded welding involves melting the welding wire using welding voltage as the energy source. The welding wire melts at a faster rate as the voltage is increased. The welding current is determined by …
Adjustment of Welding Machine Current and Voltage (CO2 Gas Shielded Welding) Read More »
Summary Titanium alloy is extensively utilized in aerospace, marine equipment, and other industries due to its high specific strength, excellent corrosion resistance, and high-temperature performance. In recent years, the welding technology of thick-walled titanium alloys …
Fusion Welding of Thick Walled Titanium Alloys: Current Status of Technical Research Read More »
Adhesive electrode refers to an abnormal welding between the electrode and the part, causing the electrode to adhere to the part. This can lead to the electrode being pulled out or the part rusting, particularly …
The fillet weld is the most commonly used welding technique for splicing steel structures during the welding process. As a result, welders often encounter various types of fillet welds, each with different standards. So, how …
In DC arc welding, magnetic bias blowing is the phenomenon of the electromagnetic force affecting the welding arc. It has a significant negative impact on the welding process and quality, and must be addressed to …
Magnetic Deflection Blowing in Welding: Countermeasures Read More »
What is surfacing weld? Surfacing welding is a process in which a layer of wear-resistant, corrosion-resistant, and heat-resistant metal is deposited on the surface or edge of a workpiece. Surfacing welding can extend the service life …
The Ultimate Guide to Surfacing Welding Techniques Read More »
In the welding process, using mixed gas instead of a single gas as the shielding gas can effectively refine the droplet, reduce the splash, improve the forming, control the penetration, prevent defects, and reduce the …
After the pressure vessel is welded, residual stress is produced in the structural weld zone. This is because the uneven heating temperature field during welding causes internal stress to reach the material yield limit, leading …
Flux: a chemical substance that can help and promote the welding process in the welding process, has a protective effect and prevents oxidation reaction. Flux can be divided into solid, liquid and gas. It mainly …
With the rapid growth of the petrochemical industry, the use of stainless steel materials has increased and higher demands have been placed on the welding of pipes and plates. The traditional method of stainless steel …
Back Protection Method for Stainless Steel Welding Read More »
Welding is mainly used for surfacing of valve sealing surface, repair welding of casting defects and welding required by product structure. The selection of welding materials is related to its process method. The materials used …
Abstract According to the National Quality Inspection Special Welder Test Rules and the requirements of the international standard for welding at a 45-degree angle, the fixed welding position of the tube plate corner joint test …
Master the Art of 45-Degree Oblique Welding Like a Pro Read More »
When a welding flame splashes, it often leaves welding spatter on the workpiece that must be removed, which takes time and money. It is better to prevent spatter, or at least minimize it, rather than …
Aluminum welding is conducted using Tungsten Inert Gas (TIG) welding, with alternating current (AC) as the power source. This is because aluminum is covered with a layer of aluminum oxide, making welding difficult. The melting …
Definition of 6GR welding of pipeline The 6GR welding of the pipe involves fixing the pipe with an obstacle ring at a 45° incline angle. The axis of the pipe forms a 45° angle with …
Discover the Meaning of 6GR and Master Welding Techniques Read More »
Preface The difference between gas shielded welding machine and other welding machines is that it is a trinity of machine, electricity and gas. In the process of use, the problems arising from it should be …
Argon arc welding has a higher degree of harm compared to electrode arc welding, but it is not cause for alarm. The level of infrared radiation produced during argon arc welding is about 1 to …
Argon Arc Welding: Is it Harmful to Your Health? Read More »
1. Advantages and disadvantages of welding connection? Advantages of welding connection: Simple structure, no weakening of component section, simple processing, various welding methods, automatic operation, saving steel, high efficiency, large stiffness, good integrity, and good …
Titanium is a highly reactive metal with unique chemical properties. It exhibits a strong affinity for oxygen, hydrogen, nitrogen, and other gases, especially at high temperatures. This property is particularly pronounced during the welding process …
Titanium Welding Seam Color and Welding Quality Explained Read More »
When designing a weld, several factors must be taken into consideration such as the weldability of the base metal, the matching of welding materials and the base metal, welding efficiency, the welding method, the size …
Compared to ordinary carbon steel, the welding process for stainless steel and the technical requirements for welders should be stricter, and the appearance of the weld should be of the utmost importance.” Here’s the revised …
1. Overview The alloy content of SA335-P91 steel is wCr=9%, wMo=1%, wV=0.2%, wNb=0.08%, wN=0.05%. It belongs to martensitic heat resistant steel, and its metallographic microstructure is low-carbon tempered martensite. Due to the adoption of micro …
Welding is a process that involves heating or pressurizing (or both) the material of the workpiece to be welded, whether it is the same or different. The use of filler materials is also determined to …
Why Can’t Stainless Steel Be Welded With Carbon Steel Electrode? Read More »
Preface Diamond is known for its high hardness, strong wear resistance, high thermal conductivity, and low thermal expansion coefficient, making it the optimal material for cutting and grinding tools. Diamond tools are widely used for …
Brazing and Diffusion Welding in Diamond Tool Manufacturing Read More »
1. Welding materials: 1. The argon gas used for welding must have a purity of ≥ 99.99% and a dew point of ≤ -55℃, and should comply with the provisions of either GB/T4842 or GB10624. …
Classification of welding gases Welding gas mainly refers to the protective gas used in gas-shielded welding (such as carbon dioxide gas shielded welding and inert gas shielded welding) and the gas used in gas welding …
The microstructure of Martensitic Steel (MS) is predominantly martensitic. It boasts a high tensile strength, with the maximum strength reaching 1600 MPa. To enhance its plasticity, the steel must be tempered, enabling it to maintain …
Welding Technique of Martensitic Steel: Things You Should Know Read More »
Summary: Connecting aluminum and steel can achieve lightweight automotive parts. However, intermetallic compound cracking caused by welding these dissimilar metals can significantly impact joint performance. This post introduces the main welding methods for laser welding …
How to Weld Aluminum Steel With Laser? (4 Welding Methods) Read More »
