Metallographic Sample Manufacturing Process & Descr­iptions

Basic Metallographic Manufacturing Flowchart

Work piece Grinding Requirements:  

1.       No round arc surfaces

2.       No scratches

3.       No thermal strain

4.       No raised/uneven surfaces

Elements that influence the work piece polishing results

1.       Disc flatness

2.       Grinding rotational speed

3.       Force imposed on the grinding specimen

4.       Lubricant

5.       Grit/Grain size

6.       The hardness & types of abrasive grains

7.       Polishing process

Elements that influence the mounting results

1.       Temperature

2.       Heating time

3.       Cooling time

4.       Work piece surface cleaning

5.       Types of mounting powders

6.       Pressure imposed

7.       The quality of mounting powders (with impurity or mist)

Elements that influence the work piece cutting surface

1.           Thermal strain at the cooling location

2.           Type, grit and grain of the material of the cutting wheel

3.           Cutting power/dynamic

4.           Clamping method & location

5.           Cutting feed speed

6.           Cutting linear speed

7.           Types of cutting oils

8.           Suitable cutting wheels