Stainless steel can be difficult to CNC turning for several reasons, including residual stress, heat generation, and tool wear. However, several steps can be taken to prevent these problems and ensure that the turning process is successful.
l Choose the right tool: The kind of tool utilized in CNC turning stainless steel significantly influences the process's result. When working with stainless steel, carbide tools are usually the better option because they are more durable and long-lasting than high-speed steel tools.
l Use the correct cutting speed and feed: Two of the most crucial factors in CNC turning are the feed and the cutting speed. The depth of cut made is referred to as feed, whereas cutting speed describes how quickly the tool moves across the workpiece. The type of stainless steel being turned and the required surface finish will determine the necessary cutting speeds and feeds.
l Use a coolant: To avoid heat generation during CNC turning, a coolant is necessary. In addition to removing heat from the cutting zone, coolant aids in lubricating the tool and workpiece. Depending on its intended use, the coolant type will vary.
l Use a chip breaker: A small insert known as a chip breaker is positioned on the cutting tool. In order to prevent chips from obstructing the cutting process, the chip breaker helps break up chips that form during cutting.
l Use a steady rest: A steady rest is one kind of support that keeps the workpiece from vibrating while it is being cut. Chatter can result from vibration, and chatter can harm the tool and workpiece.
l De-stress the workpiece: The cutting process could be the source of any residual stress. The workpiece may be more prone to distortion and cracking if there is residual stress. The workpiece can be made less stressed by heating it to a specific temperature and then letting it cool gradually.
By following these guidelines, stainless steel CNC turning can be completed successfully and issues can be avoided.