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Category - Articles

16
Jun

MATERIAL SURFACE CONDITIONS AND FILLER WIRE SELECTION

Welding wires rich in deoxidizing elements can penetrate through material coatings and contaminants Demanding material surface conditions are frequently encountered in welding applications. In an effort to reduce costs on competitive projects, fabrication shops, and construction firms often omit material cleaning steps from their processes. Whether the material carries rust, mill scale, coatings, or other …

10
Jun

The Hidden Expenses of Welding and Cutting Operations

One of the most frustrating scenarios in a project occurs when costs have been estimated, orders have been received, and products have been manufactured, only to discover that the actual cost of the job exceeds the initial estimate. This situation becomes even more exasperating when no clear cause can be attributed to the cost overrun. …

3
Jun

Tips for Optimizing Productivity with Grinding Wheels

  Metal grinding operations are inherently demanding. However, optimizing productivity can be achieved by choosing the appropriate abrasive product and tool for the specific application, and employing proper usage techniques. When tasks like weld blending, bevel preparation, or aggressive material removal to precise dimensions are required, portable grinding wheels represent an efficient solution. However, extracting …

26
May

Applications of GTAW

The gas tungsten arc welding (GTAW) process offers advantages that allow it to be utilized across an extensive array of applications. From producing high-quality aerospace and nuclear industry welds to enabling high-speed autogenous joining for tube and sheet metal fabrication, GTAW finds diverse uses as outlined below. High-Quality Welds GTAW is frequently selected when stringent …

19
May

Brazing & Soldering Lightweight Aluminum-Steel Structures for Automotive Applications

The push for lighter-weight materials in the automotive industry has intensified due to the rise of electric vehicles. Utilizing lightweight components can significantly reduce energy consumption, thereby extending the driving range per battery charge. A common approach is partially substituting steel with aluminum in automotive production. As a result, joining techniques for combining aluminum and …

14
May

A Comparison of Oxygen- vs. Air-Acetylene Torches

  When it comes to brazing, there are two main equipment choices: setups utilizing oxygen/acetylene or those using air/acetylene torches Traditionally, oxygen/acetylene rigs have dominated many HVAC brazing applications across the United States. However, air/acetylene torches represent a viable alternative option. Contractors who have experimented with air/acetylene often value their enhanced portability and reduced operating …

7
May

Q&A About Aluminum welding

  Q: What shielding gas is most appropriate for arc welding aluminum? I’ve received differing recommendations – some say to use pure argon while others suggest helium is better. I plan to use both gas metal arc welding (GMAW) and gas tungsten arc welding (GTAW) processes. Can I use the same shielding gas for each …

29
Apr

Common Weld Defects in GMAW Process

  The gas metal arc welding (GMAW) process, also known as MIG welding, is susceptible to various types of weld discontinuities or defects. This article outlines some of the frequently encountered issues. Excess Reinforcement Buildup When welding a joint from one side, the root side can experience a buildup of excess reinforcement or weld metal. …

23
Apr

All You Need to Know About Aluminum GMAW Setup

Based on an article by SEAN WALKOWSKI, AWS Magazine, January 2024 Successful aluminum gas metal arc welding (GMAW) hinges on meticulous attention to detail and a foundational understanding. Taking preventive measures to sidestep usual errors is crucial to minimize downtime for troubleshooting. Aluminum GMAW demands thorough attention to detail and foundational knowledge for efficacy. It’s …

5
Mar

Prioritizing Hot Work Safety: A Call to Action

In the recent issue of the NFPA Journal (Winter 2023), a statistical report summary titled “Structure Fires Caused by Hot Work, 2017-2021” painted an alarming picture that cannot be ignored. The data underscores a pressing need to enhance safety measures, minimize fatalities, injuries, and property losses associated with hot work operations. The Importance of a …

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