Blog - WELDING ANSWERS

Welding Guide Subscription Form

Get your FREE guide on what every welding engineer must know

Subscribe to get our latest content by email.

Developing a Welding Procedure Specification (WPS) involves much more than selecting amperage and voltage—it requires a structured approach to ensure weld quality and consistency. The process begins with understanding the base metal’s properties and how it responds to heat, followed by selecting the most suitable welding process for quality and productivity. Choosing the correct filler metal and joint design are equally critical, as both influence weld strength, cost, and efficiency. Proper control of preheat and post-weld heat treatment (PWHT) helps manage metallurgical changes that prevent cracking or distortion. Finally, setting appropriate welding variable ranges ensures balance between quality and productivity, resulting in a reliable, code-compliant welding procedure.

When a product fails, fabricators are often the first to be blamed — especially if a weld is involved. Without proper welding quality documentation, it’s nearly impossible to defend yourself, even when the failure had nothing to do with welding. In this post, we break down how documentation like WPS, PQRs, welder qualifications, and inspection records can reduce or even eliminate liability. More importantly, we show how implementing a Welding Quality Standard not only protects your business but also improves efficiency, builds customer confidence, and creates a lasting competitive advantage.

The Welding Quality Standard Template is generating a lot of interest — and plenty of questions. In this post, we answer the most common ones, from how easy it is to customize, to what’s included, to whether it’s just about compliance or actually helps improve your shop. You’ll see that over 80% of the work is already done for you, making it simple to create a professional welding quality standard in just a few hours. Most importantly, the Welding Quality Standards Template not only fulfills critical documentation requirements but also reduces rework, improves efficiency, and boosts profitability when put into practice.

Corrosion in welded structures isn’t just rust — it takes many forms, each with unique causes and risks. Welds often corrode faster than base metal because of differences in microstructure, composition, and residual stress. The main types include general corrosion, galvanic, crevice, pitting, intergranular attack, stress corrosion cracking, and microbiologically induced corrosion. Understanding these forms is critical because each requires a different prevention strategy, from material selection to welding technique and protective coatings. By learning how corrosion works, companies can extend equipment life, avoid failures, and save significant costs.

Most fabrication shops lose money and opportunities because they lack a formal Welding Quality Standard. Without it, rework piles up, documentation is inconsistent, and contracts slip away. This post explains why a Welding Quality Standard is critical, how it cuts costs and builds customer confidence, and why creating one doesn’t have to take weeks. With the Welding Quality Standard Template (WQST), fabricators can build a professional, AWS-centric quality standard in just hours—meeting customer requirements and improving consistency across the shop floor.

Material control is one of the most overlooked aspects of welding quality. Without proper systems for receiving, storing, issuing, and tracking materials, even the best welders can’t guarantee consistent results. Poor control leads to rework, scrap, and lost contracts—costs that quickly add up. In this post, we break down the essentials of material control and show how a Welding Quality Standard can help fabricators reduce waste, improve weld quality, and build customer trust.

Overlap is one of the most common weld discontinuities, yet it often slips past visual inspection until after painting or final quality checks. This defect occurs when molten weld metal rolls over onto the base metal without fusing properly, creating a mechanical notch that can trigger cracking and costly repairs. In this article, we break down the causes of overlap—including poor welding procedures, mill scale, and inadequate technique—and outline proven solutions for preventing it. If you’re responsible for welding quality in your shop, this guide will help you recognize overlap and correct it before it becomes a problem.

Rework and scrap are two of the biggest hidden drains on profits in fabrication shops. A weld defect that could have been fixed in minutes at the booth often ends up costing hours once it reaches paint or final inspection. The truth is, most rework and scrap are preventable with better procedures, joint prep, in-process checks, and targeted training. This article breaks down the root causes of welding rework and shares five proven ways to stop it before it starts. Implementing even a few of these practices can drastically cut costs and improve customer confidence.

Steel’s carbon content determines much of its behavior in fabrication, from mechanical properties to weldability. As carbon increases, strength and hardness rise, but ductility and machinability drop, making steels more difficult to weld. Low carbon steels are the most weldable, while medium and high carbon steels require preheating and strict control to avoid cracking. This post breaks down the effects of carbon on strength, hardness, ductility, weldability, and machinability, giving welders and engineers practical insights for better decision-making. Understanding these relationships helps prevent failures, improve weld quality, and reduce fabrication costs.

While everyone strives for high-quality welds, sometimes the pursuit of perfection can backfire, leading to unnecessary costs and even new defects. This article examines four common scenarios where an excess of quality can be detrimental to your welding operation. From overwelding and the myth that "bigger is better," to the risks of chasing excessive penetration and choosing an overly aesthetic process like TIG for every job, these practices often waste time and money without improving the final product. We also explore why using an undermatching filler metal can sometimes be a smarter, more cost-effective choice for preventing cracks than a high-strength, matching filler. The key is to meet the required quality standards without going beyond what the application demands.

Blogs

Get your FREE guide on what every welding engineer must know

Blogs

Get your FREE guide on what every welding engineer must know