210 likes | 571 Views
Hardness Measurement in Industry. Tassanai Sanponpute Head of hardness and torque laboratories National Institute of Metrology (Thailand). What is Hardness ?. Most products around us today, related to the measurement of hardness. Medicine tablet. Hardness of coins.
E N D
Hardness Measurement in Industry Tassanai Sanponpute Head of hardness and torque laboratories National Institute of Metrology (Thailand)
What is Hardness ? Most products around us today, related to the measurement of hardness.
Hardness of coins Should be 70 HV to 95 HV
Welding parts Vickers hardness test
Carburizing Part • Increased surface hardness • Increased wear resistance • Increased fatigue/tensile strengths
Carburizing Part • Case hardness test Vickers hardness test
Moh’s hardness test Gem and Mineral • Moh’s hardness standard
Coating micro-hardness test -Micro-Vickers -Knoop hardness test
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.
Sheet metal and automobile • Rockwell hardness test
Massive and irremovable parts • Portable hardness
END Thank you for your kind attentions