Before drilling a hole
- Hole diameter
- Hole depth
- Hole quality
The type of hole and desired precision affect the choice of tool.
There are many different types of holes. The illustrations below represent Fore of the most common types of holes.
Analysis of workpiece before drilling
After analysing the hole, one should take a look at what material the workpiece is made of. The shape and number of the component is also important.
- What is the material hardness (material hardness is the ability to resist indentations by the pressure of other objects) of the component?
- Does the material have good chip breaking properties?
- Machinability (the term machinability refers to the ease with which a material can be machined to give a satisfactory result, including the machined surface, tool life and costs)?
- What does the shape of the component look like, does it have thinner sections that can cause vibration?
- Can the workpiece be fixed properly or is there a problem with the stability?
- Do extra-long drills have to be used due to the shape of the component?
The information in this report is only applicable to SSAB’s products and should not be applied to any other products than original SSAB products.
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