Welding bead /fillet measurement

Adjustable Fillet Weld Gauge / AWS Type Gauge Standard or Metric

Least Count of

 What is least count?
In simple words, it is the minimum measurement that can be taken by that instrument.

Least Count = S/N

Metric Vernier   Caliper = 0.01mm
..Digital Vernier Caliper = 0.02mm
..Dial Vernier Caliper = 0.02mm

Metric Micrometer = 0.01mm
..Digital Micrometer=0.02mm

Scratch Measurment

scratch can be measured using digital pit depth gauge
or Digital Optical Micrometer Kit

How to measure roughness

We usually measure roughness in microns or nano microns

we use to measure roughness by following parameter
Ra=Average roughness
Rmax= Maximum Roughness
Rrms=Root mean square Roughness

Instrument to be used = Surface Roughness tester/Profilometer

More the Ra more smooth is the surface.

How many microns are in 1mm and m

1mm =1000 micron
1micron=  .001mm

1m =10^-6 micron
1micron =10^6 m


Useful result:
100 micron = .1mm

What is Quality?

What is Quality?

The standard of something as measured against other things of a similar kind; the degree of excellence of something: "quality of life".
Quality is the universal concept which describes if the goods and services offered by the supplier meet our expectations concerning the characteristics of the product or service.

  • The fundamental reason for focusing on quality is the potential for an increased profitability.
    • Consumers demand and expect quality in return for their money.
    • Consumers recognize quality, and are willing to pay for it.

  • Quality builds up the brand and makes the product more profitable.
    • The winner of the quality game gets the attention and the sales.

Key aspects of quality for the customer include:
  • Good design – looks and style
  • Good functionality – it does the job well
  • Reliable – acceptable level of breakdowns or failure
  • Consistency
  • Durable – lasts as long as it should
  • Good after sales service
  • Value for money
  • Products of poor quality may disappoint the buyer and consequently:
    • The buyer will not buy the product again.
    • The buyer will not buy any other product from the company.
    • The buyer will tell their friends and relatives about their bad experience.

  • Customer loyalty – they return, make repeat purchases and recommend the product or service to others.
  • Strong brand reputation for quality

    • Poor quality leads to product failure.
    • Better quality leads to:
      • Increased production.
      • Lower warranty costs.
      • Lower marketing costs.
      • Fewer surprises.

      The quality of the products and services sold on the market are assured via

    - standards,
    - technical regulations,
    - testing and certification,
    - metrology and accreditation.

    Why Quality is important?
     a satisfied customer is not always a loyal one
    Positive customer experiences delight the consumer and lead to additional sales.