The Basics of Using a Reamer
A reamer is a tool commonly used in metalworking and woodworking to create precisely sized holes. It works by gradually enlarging the diameter of an existing hole until it meets the desired size to fit a specific part or tool. But what many people wonder while using reamers is how fast they should turn them to achieve the best results.
The Importance of Speed for Reamers
Speed is crucial when using a reamer because it can affect the quality of the hole created. If you run a reamer too fast, it can overheat, which damages the reamer’s edges and reduces its life. On the other hand, running a reamer too slow can create an uneven and rough hole. Therefore, determining the optimal speed for a reamer can save both the reamer and the workpiece.
Factors That Affect Reamer Speed
Several factors can affect the proper speed for using a reamer. The type of material being reamed is a significant factor. Softer materials like aluminum require a faster speed, while harder materials like steel require a slower speed. The second factor is the diameter of the hole and the reamer. The larger the hole and the reamer, the slower the speed should be. Finally, the flute geometry of the reamer can affect the optimal speed. The larger the flute size, the higher the speed that can be used.
The Formula to Calculate Reamer Speed
One way to calculate the proper speed for using a reamer is by using a formula. The formula is as follows:
Speed (SFM) = (3.82 x cutting speed) / diameter of the reamer
The cutting speed differs depending on the type of material being machined. It is measured in feet per minute (FPM). The diameter of the reamer is measured in inches. Once you know these details, you can plug them into the formula to determine the optimal speed for the reamer’s application.
Other Tips for Using a Reamer
Besides determining the right speed, several tips can help you achieve the best results when using a reamer. It is essential to keep the reamer well lubricated throughout the drilling process, as it helps prevent heat build-up and prolongs the life of the reamer. Additionally, using the right feed rate can also play a crucial role in achieving the desired results. It is best to start with a slower feed rate and increase it gradually, ensuring the reamer is running smoothly and not being overloaded.