Cutting speed
Cutting speed is the speed at which the tool is moved over the material. It must be precisely matched to material thickness and heat input to avoid cutting errors.
Physical-Chemical Mechanism of Action
The cutting speed affects the local temperature distribution in the material and the time the tool stays in contact with the material. Too high a speed can lead to rapid cooling, which makes the material hard and prone to cracking. Too low a speed increases the heat input and can cause distortion or slow cutting.
Metallurgical Relevance & Welding Risks
An improper cutting speed can cause various problems. Too high a speed can result in glass-hard hardness and crack susceptibility of the material, leading to cracks or failure of parts. Too low a speed increases heat input and can cause distortion and slow cutting.
Workshop Practice & Instructions
Set the cutting speed precisely according to material and tool. For high-hardness steel, keep the speed low to ensure controlled cooling. For soft metals, higher speeds are okay. Recommended values are in the tool manufacturer's instructions or the material handbook. Adjust the speed during cutting as needed for best results.