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Understanding Welding Procedure Qualification: From pWPS to WPQR – What Exactly Is Being “Qualified”?
Case study: A shipyard discovered linear defects during ultrasonic testing (UT) of a test piece following welding. Analysis revealed that the defects were caused by excessive welding speed, resulting in lack of fusion. After adjusting the speed, the weld was re-performed and passed the assessment. Scope: A single WPS may be supported by multiple PQRs.
Installation Procedures for Stainless Steel Cladding
Installation Procedures for Stainless Steel Cladding Stainless steel cladding has become a common finish in modern interior decoration projects. To achieve the best decorative effect, the thickness of the stainless steel cladding material should generally not be less than 1.2 mm; 1.5 mm is preferable.
How robotic automated riveting and welding processes enhance production efficiency and consistency
The Riveting and Welding Revolution Amidst the Automation Wave Against the backdrop of global manufacturing advancing towards Industry 4.0 and “Made in China 2025”, traditional riveting and welding processes—historically reliant on manual skills—are undergoing a profound automation transformation. Robotic automated riveting and welding systems, with their exceptional repeatability, stable...
Laser welding vs. conventional welding: How to choose the right technology for your project?
In the field of metal fabrication and machining, choosing the right welding technology is a critical part of determining the success or failure of a project. Laser welding and conventional welding (e.g. MIG/MAG, TIG) are the two dominant technologies, but they differ significantly in terms of productivity, cost and final quality. As a leading company...
Rivet Welding Processes and Rivet Welding Plants: the core strength of modern metal structure manufacturing (a reliable rivet welding plant should be well-equipped and quality assured)
Rivet Welding Processing and Rivet Welding Plant: the core strength of modern metal structure manufacturing From the sturdy skeleton of heavy machinery to the complex components of precision equipment, rivet welding processing has constructed a solid foundation for modern industrial manufacturing with its unique joining technology. In the field of industrial manufacturing, the reliability of joining technology and...
The whole process of intelligent transformation of old stacker reclaimer: practical analysis from technology selection to investment recovery (for “intelligent stacker reclaimer transformation technology programme and investment return analysis”)
When a large domestic port decided to carry out intelligent transformation of 12 stacker reclaimers with an average age of more than 15 years, there was a lot of internal controversy. The opponents made a calculation: the total budget for the transformation is 28 million, while the new equipment purchased is only 120 million, is the transformation worth it? Now, three years later, this remodelling...
Welding Procedure Qualification Report for Q235B 12 mm Plate Butt Welds
Company Welding Procedure Qualification Number; Compilation, Review, Approval; List I: Welding Procedure Qualification Terms of Reference; total pages; II: Pre-welding Procedure Specification; total pages; III: Welding Procedure Qualification Report; total pages; IV: Appendices: Inspection and Material Reports; total pages
G2B Welding Process.doc
MIG Welding Process.doc, MIG Welding Process; CO₂ Gas Shielded Welding Process; Steel Structure CO₂ Gas Shielded Welding Process Specifications 1 Scope of Application This standard applies to all types of steel structures manufactured by this company
180° turning device for workpieces
Technical Brief: This patent proposes an automatic turning device for the problem of low efficiency and high safety risk caused by traditional plate turning relying on manual or travelling vehicle operation. The 180°turning of the workpiece is realised by the rotating structure of the clamping part and the longitudinal beam, together with the design of the limit device and concave table.
Causes of welding deformation and control methods
Causes, influencing factors and control methods of welding distortion., Causes and control methods of welding distortion, Jiayu Testing Network, Testing News











