Why Use Coolants and Lubricants in Cutting Threads
The use of coolants and lubricants in metal cutting is important. If you drill a lot of holes, or if you want good quality when drilling, you must not only choose the right tool, but also consider cooling and lubrication. If you don't use the right cooling lubricant, you may have bad results.
But before we get into the application and the right cooling lubricant, let's take a look at what happens during the cutting of a thread.
Friction between two materials
Why do we need cooling and lubrication? Suppose you are drilling with a stainless steel twist drill. The rotary motion of the twist drill and the resulting friction with the workpiece generates heat. In some cases, the application temperature may be as high as 1,200 °C. In this case, cooling is very important, for example to prevent high temperature heating (annealing) of the twist drill.
However, there are other reasons why you should use coolants and lubricants.
Uses of coolants and lubricants
Cooling and lubrication in metalworking have different purposes and are therefore extremely important: to
This reduces the wear of the drill bit, thus extending the life of the tool
Heat should be dissipated as quickly as possible, so the tool and workpiece do not overheat
Removal of chips and wear parts for easy chip pickup and removal
Cleanliness of the workpiece and protection against corrosion
Improvement of workpiece surface and maintenance of workpiece quality
Which cooling lubricant is right for which application
But which coolant for your application? First, you need to look at what type of cutting method you are dealing with.
Choosing the right cooling lubricant depends on the cutting speed, the workpiece to be cut and the required cooling and lubrication effect.
Depending on the application, different cutting concentrates can be used. Coolants and lubricants are available as cutting pastes, cutting sprays and general purpose cutting oil concentrates.
The choice of cooling lubricant depends on.
Drilling process (drilling, countersinking, thread cutting)
Requirements for cooling, flushing and lubrication
Cutting capacity of the workpiece
Cutting speed
The required dimensional accuracy and surface quality
Thermal sensitivity of the cutting material
Conclusion and summary
Cooling is important and should be done if possible when cutting steel and metal. Five reasons for using cooling and lubrication are obvious.
Reduce friction between the drill and the workpiece
Dissipate heat
Removal of chips and worn parts
Cleaning and corrosion protection of the workpiece
Improving the surface of the workpiece
By choosing the right coolant and lubricant for each application, you can work in this direction and get good drilling results.
If you have any questions, please feel free to contact us.
