Award in Non-Destructive Examination and Symbols for Welding Technology

This unit forms part of the Course in MCAST Award in Weldability of Metals and the Management of Engineering Welding. Once a learner complete all the units in this course satisfactorily; that is has obtained a pass mark in the assessment and respected the 80% attendance s/he will achieve an award pegged at MQF Level 5, 20 ECVET Credits

To communicate design specifications and other requirements to fabrication and weld production plans and sites, standard symbols are used to indicate desired welding and brazing information on production/ workshop drawings. This forms the core of this unit and the international B.S, AWS, and ISO standards are used and compared from the many different aspects of welding processes. Nondestructive examination requirements for welded and brazed joints are also discussed. Only a general overview is included since this topic depends on the quality standards being adopted.

This is a 32 hrs of guided learning course. Students need to invest further hours in the course, which will include private study and home assignments.

Lessons are held as indicated on the prospectus and website.

Learning Outcome 1: Evaluate the purpose and application of Welding Symbols

Unit Content

• Elements of weld symbol: reference line, arrow, basic weld symbol, dimensions and other data, supplementary symbols, finish symbol, tail, specification and process
• Location of Elements: standard location with respect to each other
• Supplementary symbols: Weld-All-Around, Field Weld Symbol, Melt-Thru Symbol, Backing and Spacer Symbol, Contour Symbol
• Construction of symbols: Multiple reference lines, types of joints, processes
• Welds: Fillet weld, Plug and slot welds, Flange welds, Spot welds, Seam welds

Learning Outcome 2: Evaluate the purpose and application of Brazing Symbols

Unit Content

• Brazing Symbols: Brazed joints, brazing processes: diffusion brazing, Dip brazing, Furnace brazing, Induction brazing, Infrared brazing, Resistance brazing, Torch brazing

Learning Outcome 3: Evaluate Nondestructive Examination Symbols

Unit Content

• Elements of the nondestructive symbols: Reference line, Arrow, Basic examination symbol, Examine-all-around symbol, Number of examinations, Examine in field, Tail, Specifications
• Type of Examination: Acoustic examination, Eddy current, Leak, Magnetic particle, Neutron radiographic, Penetrant, Proof, Radiographic, Ultrasonic, Visual
• Extent of examination: Arrow side examination, Other side examination, Examination of both sides, No side significance, length, Number of examinations, All-Around examination, Area, Acoustic emissions

The following are the suggested pre-requisites and/or entry requirements needed:

Pre-requisites;

• Hand on experience in one or more welding process.
• Knowledge of local Health and Safety Legislation
• Familiar with construction/ industrial sites.

Entry Requirements:

• Level 4 or above in Welding and Fabrication.
• Level 4 in Physics plus industry experience.

Applicants may be called for an interview prior the commencement of the course.

Course participants may be awarded either an MCAST Certificate of Attendance or an MCAST Certificate of Achievement.

MCAST Certificate of Attendance

• An MCAST Certificate of Attendance will be awarded to those candidates who attend at least 80% of the lessons.

MCAST Certificate of Achievement

• An MCAST Certificate of Achievement will be awarded to those candidates who satisfy the 80% attendance criteria AND ALSO choose to sit and pass the course assessment/s.
• Students who opt not to sit for the assessment/s or fail (the assessment/s) will however be awarded an MCAST Certificate of Attendance provided that they fulfill the minimum attendance criteria as stated above.

If the student intends to obtain a Certificate of Achievement, she/he is required to sit for an assessment/s. Assessment/s may take various forms such as a home assignment, class assignment, practical test and time constrained test. However, the assessment/s is not compulsory and an applicant may choose not to sit for it.

There are no additional costs or special materials / equipment to bring.