Generally is the blade wear, fastening screws slip teeth, tool rod rigid enough, etc
Nc cutter cutting edge is the most prone to problems, what kind of hardness will use corresponding material of cutting tool materials, processing and use of related parameters such as feed speed, it depends on the teacher's operation experience, used properly, nature can make the tool full use of the natural life, improper use is easy to make damage to the cutting tools. Another row of knives cutting capacity and cooling methods are to be considered.
Another tool when installation, pay special attention to cleaning. Drilling tool whether it is rough machining or finish machining, the installation and assembly of each link, all must pay attention to cleanliness. The handle and machine assembly and replacement blades, etc., all want to wipe clean, then installation or assembly, should not be engaged in careless.
A preset tool, dimensional accuracy, good condition, must conform to the requirements. Indexable boring tool, in addition to the single boring cutter blade, generally do not adopt the method of artificial trial cut, so machining before the preset it is very important. Preset size must be accurate, asked in the tolerance of the lower limit, and to consider because of the factors of temperature, modification and compensation. Tool preset can in special presetters, machine or other instrument of knife.
Dynamic pulse check tool is installed. Dynamic pulse examination is a comprehensive index, which reflects precision machine tool spindle, cutting tool precision and accuracy of cutting tool and machine tool connection. The accuracy if more than 1/2 or 2/3 of the hole required precision processed will not be able to carry on the processing, the need to find out the reason and eliminate, to proceed. This operator must keep in mind and strictly implemented. Otherwise out of the hole can't conform to the requirements.
Should also be determined by statistics or testing method, the life of the tool parts, to ensure the reliability of the machining accuracy. For single boring cutter blade, this requirement may be lower, but for more boring cutter blade, it is particularly important. Indexable boring cutter's machining features are: blade adjustment in advance, meet the requirements in one time, must ensure that the tool is not damaged, otherwise will cause unnecessary accidents.