CNC engraving processing and selection of cutting parameter

CNC engraving machine cutting parameter selection principle and common milling machine, CNC milling machine and so on a larger difference between the two. CNC milling machine tool use is bigger, often in more than 12 mm in diameter, belong to heavy cutting processing; And CNC engraving machine application advantages in the use of small tools, use the tool usually under 12 mm in diameter, belong to light cutting processing. Determine the cutting parameter to consider machine power and strength of tools and process system stiffness. Rough machining, as far as possible to remove all allowance. Big margin, determine the cutting parameter to consider the power of machine tools and cutting tool strength, avoid causing big vibration, big impact and broken to cutting tools. When finishing, mainly considering the machining accuracy and surface roughness. Can't meet the requirements, should consider to increase a half finishing process, make allowance even before finishing, so as to achieve satisfactory results. CNC carving processing, the selection principle of cutting parameter can be summarized as 'eat less' swift, n - namely in force R_, the choice of smaller turning depth or feed, increase feed speed, namely the principle of high speed milling.