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1 Hardness Measurement in Industry Tassanai Sanponpute Head of hardness and torque laboratories National Institute of Metrology (Thailand)

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Presentation on theme: "1 Hardness Measurement in Industry Tassanai Sanponpute Head of hardness and torque laboratories National Institute of Metrology (Thailand)"— Presentation transcript:

1 1 Hardness Measurement in Industry Tassanai Sanponpute Head of hardness and torque laboratories National Institute of Metrology (Thailand)

2 2 Most products around us today, related to the measurement of hardness. What is Hardness ?

3 3 Medicine tablet

4 4 Hardness of coins Should be 70 HV to 95 HV

5 5 Green sand mold

6 6 Hardness of wood

7 7 Welding parts Vickers hardness test

8 8 Carburizing Part Increased surface hardness Increased wear resistance Increased fatigue/tensile strengths

9 9 Carburizing Part Case hardness test Vickers hardness test

10 10 Carburizing Part

11 11 Gem and Mineral

12 12 Moh’s hardness test Moh’s hardness standard Gem and Mineral

13 13 Coating nano-hardness test

14 14 Coating micro-hardness test -Micro-Vickers -Knoop hardness test

15 15 Concrete Test The rebound is dependant upon the hardness of the surface under test, the harder the surface the higher the rebound and visa versa.

16 16 Rubbers, Plastics

17 17 Sheet metal and automobile

18 18 Sheet metal and automobile Rockwell hardness test

19 19 Massive and irremovable parts Portable hardness

20 20 END Thank you for your kind attentions

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