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Welder Certification
Welder certification, (also known as welder qualification) is a process which examines and documents a welder's capability to create welds of acceptable quality following a well defined welding procedure. Method Welder certification is based on specially designed tests to determine a welder's skill and ability to deposit sound weld metal. The main part of the welder's test consists of welding one or more test coupons which are then examined using non-destructive and destructive methods. The extent of certification is described by a number of variables, which include the specific welding process, type of deposited metal, thickness, joint design, position, backing, and others. Most often, the test is conducted in accordance with a particular code. Depending on product requirements the test can be administered under the auspices of a national or international organization, such as the American Welding Society (AWS), or American Society of Mechanical Engineers (ASME), but manufacture ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Welder
A welder is a person or equipment that fuses materials together. The term welder refers to the operator, the machine is referred to as the welding power supply. The materials to be joined can be metals (such as steel, aluminum, brass, stainless steel etc.) or varieties of plastic or polymer. Welders typically have to have good dexterity and attention to detail, as well as technical knowledge about the materials being joined and best practices in the field. Safety issues Welding, without the proper precautions appropriate for the process, can be a dangerous and unhealthy practice. However, with the use of new technology and proper protection, the risks of injury and death associated with welding can be greatly reduced. Because many common welding procedures involve an open electric arc or a flame, the risk of burns is significant. To prevent them, welders wear personal protective equipment in the form of heavy leather gloves and protective long sleeve jackets to avoid exposure t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Welding Procedure Specification
A Welding Procedure Specification (WPS) is a formal document describing welding procedures. It is an internal document used by welding companies to instruct welders (or welding operators) on how to achieve quality production welds that meet all relevant code requirements. Each company typically develops their own WPS for each material alloy and for each welding type used. Specific codes and/or engineering societies are often the driving force behind the development of a company's WPS. A WPS is supported by a Procedure Qualification Record (PQR or WPQR), a formal record of a test weld performed and rigorously tested to ensure that the procedure will produce a good weld. Individual welders are certified with a qualification test documented in a Welder Qualification Test Record (WQTR) that shows they have the understanding and demonstrated ability to work within the specified WPS. Introduction The following are definitions for WPS and PQR found in various codes and standards: Accor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Welding
Welding is a fabrication (metal), fabrication process that joins materials, usually metals or thermoplastics, primarily by using high temperature to melting, melt the parts together and allow them to cool, causing Fusion welding, fusion. Common alternative methods include solvent welding (of thermoplastics) using chemicals to melt materials being bonded without heat, and #Solid-state welding, solid-state welding processes which bond without melting, such as pressure, cold welding, and diffusion bonding. Metal welding is distinct from lower temperature bonding techniques such as brazing and soldering, which do not melt the base metal (parent metal) and instead require flowing a filler metal to solidify their bonds. In addition to melting the base metal in welding, a filler material is typically added to the joint to form a pool of molten material (the weld pool) that cools to form a joint that can be stronger than the base material. Welding also requires a form of shield to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ISO/IEC 17024
ISO/IEC 17024: Conformity assessment - General requirements for bodies operating certification of persons is an ISO/IEC standard which specifies criteria for the operation of a certification body for persons. The standard includes requirements for the development and maintenance of the certification scheme for persons upon which the certification is based. ISO/IEC 17024:2012 ISO/IEC 17024:2012 was released in July 2012 and was last reviewed and confirmed in 2018.The standard was opened for revision in 2023 and is currently undergoing revision. This version contains requirements for certification bodies for persons in the following areas: * Structure * Resources * Records and information * Development of certification schemes * Certification processes * Management system The major changes between the 2003 version and the 2012 version are within the detailed information regarding the development of the scheme for certification of persons. The 2003 version required the certificat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
UKAS
The United Kingdom Accreditation Service (UKAS) is the sole national accreditation body recognised by the British government to assess the competence of organisations that provide certification, testing, inspection and calibration services. It evaluates these conformity assessment bodies and then accredits them where they are found to meet relevant internationally specified standards. Functions *UKAS assesses conformity assessment bodies for competence against internationally recognised standards *UKAS accredits (recognising competence of organisations to provide conformity assessment tasks) *UKAS issues accreditation certificates and schedules showing the limits of the accreditation for a particular conformity assessment body and permits the use of the UKAS mark on accredited certification provided that it is accompanied by the UKAS Accreditation Number of the accredited body. The validity of an accreditation should be checked on the UKAS website. UKAS certificates do not bea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Accredited
Accreditation is the independent, third-party evaluation of a conformity assessment body (such as certification body, inspection body or laboratory) against recognised standards, conveying formal demonstration of its impartiality and competence to carry out specific conformity assessment tasks (such as certification, inspection and testing). Accreditation bodies are established in many economies with the primary purpose of ensuring that conformity assessment bodies are subject to oversight by an authoritative body. Accreditation bodies, that have been peer evaluated as competent, sign regional and international arrangements to demonstrate their competence. These accreditation bodies then assess and accredit conformity assessment bodies to the relevant standards. An authoritative body that performs accreditation is called an ' accreditation body'. The International Accreditation Forum (IAF) and International Laboratory Accreditation Cooperation (ILAC) provide international recogniti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
British Institute Of Non-Destructive Testing
The British Institute of Non-Destructive Testing or BINDT is a professional body for engineers and other technical professionals involved in non-destructive testing and condition monitoring in the United Kingdom. The institute was founded in 1976, by amalgamation of the ''Society of Non-Destructive Examination'' (SONDE) and the ''NDT Society of Great Britain'' (NDTS), which were both founded in 1954. BINDT is a licensed member institution of the Engineering Council and a full member of the European Federation of NDT (EFNDT) and the International Committee for NDT (ICNDT). Their headquarters is located in Northampton, UK. Certification BINDT maintains PCNPersonnel Certification in Non-Destructive Testing. PCN is a personnel certification scheme in NDT methods, welding inspection and condition monitoring, which is accredited by UKAS according to ISO 17024. PCN certification schemes for the major NDT methods conform to BS EN ISO 9712 (2012). PCN condition monitoring certificatio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Welding Inspector
Welding is a fabrication process that joins materials, usually metals or thermoplastics, primarily by using high temperature to melt the parts together and allow them to cool, causing fusion. Common alternative methods include solvent welding (of thermoplastics) using chemicals to melt materials being bonded without heat, and solid-state welding processes which bond without melting, such as pressure, cold welding, and diffusion bonding. Metal welding is distinct from lower temperature bonding techniques such as brazing and soldering, which do not melt the base metal (parent metal) and instead require flowing a filler metal to solidify their bonds. In addition to melting the base metal in welding, a filler material is typically added to the joint to form a pool of molten material (the weld pool) that cools to form a joint that can be stronger than the base material. Welding also requires a form of shield to protect the filler metals or melted metals from being contaminated ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pressure Equipment Directive
The Pressure Equipment Directive (PED) 2014/68/EU (formerly 97/23/EC) of the EU sets out the standards for the design and fabrication of pressure equipment ("pressure equipment" means steam boilers, pressure vessels, piping, safety valves and other components and assemblies subject to pressure loading) generally over one liter in volume and having a maximum pressure more than 0.5 bar gauge. It also sets the administrative procedures requirements for the "conformity assessment" of pressure equipment, for the free placing on the European market without local legislative barriers. It has been mandatory throughout the EU since 30 May 2002, with 2014 revision fully effective as of 19 July 2016. The standards and regulations regarding pressure vessels and boiler safety are also very close to the US standards defined by the American Society of Mechanical Engineers (ASME). This enables most international inspection agencies to provide both verification and certification services to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Welding
Welding is a fabrication (metal), fabrication process that joins materials, usually metals or thermoplastics, primarily by using high temperature to melting, melt the parts together and allow them to cool, causing Fusion welding, fusion. Common alternative methods include solvent welding (of thermoplastics) using chemicals to melt materials being bonded without heat, and #Solid-state welding, solid-state welding processes which bond without melting, such as pressure, cold welding, and diffusion bonding. Metal welding is distinct from lower temperature bonding techniques such as brazing and soldering, which do not melt the base metal (parent metal) and instead require flowing a filler metal to solidify their bonds. In addition to melting the base metal in welding, a filler material is typically added to the joint to form a pool of molten material (the weld pool) that cools to form a joint that can be stronger than the base material. Welding also requires a form of shield to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Welding Institute
Originally registered as the Institution of Welding Engineers in 1923, The Welding Institute has grown and changed over the intervening decades, yet maintains a specialisation in welding, joining and allied technologies. The formation in 1923 of the professional institution, later to become The Welding Institute, and the establishment of the British Welding Research Association (BWRA) in 1946 provided the basis of the company group as it is today. The Welding Institute Group now encompasses a professional membership institution (‘''The Welding Institute’'') and an engineering research, consultancy and technology organisation ''(‘TWI Ltd’''), as well as an international training school (''‘TWI Training’''), the National Structural Integrity Research Centre (''‘NSIRC’''), a series of collaborative enterprises with academia ''(‘The TWI Innovation Network’''), and more. It has been headquartered near Cambridge, England, since 1946, and has other facilities acros ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
