INTRODUCTION FOR IPC WHMA 620 : WIRE HARNESS TRAINING 

This IPC WHMA 620 Program is a 2 days training that will provide the participants with knowledge and skills required in understanding all aspects of IPC WHMA 620 standards including product classifications, components and solderability accept / reject criteria, defects categories and etcs.  It gives the participants the knowledge and competence required to negotiate better with customers in line with IPC and ISO 9000 series standard requirements.

COURSE OBJECTIVES

Program Objective: After the 2 days training, participants shall enhance knowledge and skills in the following fields:

• IPC WHMA 620 terminologies, terms and definitions.
• IPC standards and it’s requirements
• Form, Fit and Function of the product quality standard.
• Accept and Reject criteria of electronic components and solderability in wire soldering and interconnects including wire harness.
• Educate production technicians in proper basic cut/strip/crimp/insert connector methodology and inspections criteria.
• To ensure technicians understand IPC standard class 1, 2 and 3 requirement. Focus will be more on Class 2 built product requirement.
• To equip production technicians to gear up to the “IPC620 Industrial Standard” and prepare them for in-house and on-site jobs.
• Competency in IPC WHMA 620 and great negotiating skills with customer on return goods criteria
• Know all applicable documents as per IPC WHMA 620.
• Production technicians to achieve a certificate of competency in IPC WHMA 620 at end of training.

WHO SHOULD ATTEND

Production and Process technicians

WORKSHOP METHODOLOGY

Participants will be involved in 60% lectures and 40% group and team discussions with exercises and selected video clips for skills enhancement.

There will be line tour and audit on process WHMA 620 for continuous improvements (optional)

TOOLS AND TRAINING ACCESSORIES REQUIRED: ARRANGED BY CLIENT COMPANY

• Soldering rework station: Complete set up for soldering practice
• Crimping tools
• Wires: Single core and Multicore
• RF coaxial cable (TV aerial signal coaxial cable head: Male and Female)
• Slugs – Assorted size
• PCB blank for soldering components and wires
• PTH components: Electrolytic capacitor, Resistor, Chip components
• Wires 1 feet long assorted colours – quantity 5 each for each trainee.
• Nylon lacing cord: 1 roll

Training duration: 2 days (9.00am to 5.00 pm).

COURSE CONTENT

Day 1: 9.00am to 5.00pm

• Pre test assessment
• Introduction to IPC WHMA 620
• Introduction to Standards

• • 4W1H
  • IPC 620 requirement
  • 3Fs: Form, Fit and Function

• Form: Components shape, size, value and body conditions
• Fit: Placement accuracy
• Function: Electrical characteristics, working condition and defects
• Product classifications

• • Class 1: Stand alone
  • Class 2: System control
  • Class 3: Costly and Life at stake

• IPC 620 workmanship standards: Manual guided summary study
• Reject and Acceptance criteria: Wires, Hardware, Crimping, Soldering and others
• Handling wire harness and electronic assemblies
• Hardware classifications
• Basic wires: Insulation, conductor, tinning
• Power cords: Wire colour codes
• Wire preparation: Single core, Multicore and Coaxial wire and cables
• Crimping techniques: Single core and Multicore wires
• Accept reject criteria.
• Coaxial connector: Assemble, Inspection and Testing
• Basic soldering techniques – Wire and Connectors
• Solder quality and its standards
• Terminal connections
• Through hole technology
• Chip components soldering
• Components damages and Samples

Day 2: 9.00am to 5.00pm

• Revision: Day 1 lessons
• Discrete wirings: Single core and Muliticore
• Wire dressings and arrangement
• High voltages
• Safety: Wire harness products
• Job risk analysis
• Soldering practical exercises: Score sheet assessment with soldering instructions and evaluation. Practice 3 trial attempts. Trainer check, give score and provide constructive feedback on quality of soldering done.

• • Practice 1: Wires – Preparation, Tinning, Soldering
  • Practice 2: Coaxial cable preparation, Inspection and Testing
  • Practice 3: PTH components de-soldering and soldering
  • Practice 4: Chip components de-soldering and soldering
  • Practice 5: RF components de-soldering and soldering
  • Practice 6: Wires and Slugs Crimping and Sleeving
  • Overall feedback and assessment summary.

• 2 days training summary
• Post test assessment
• Pre and Post test review and scores.
• Training evaluation

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