In the process of CNC prototype proofing, some prototype processing accuracy has very high requirements,So how can the prototype factory improve the machining accuracy of CNC prototype? The first step is to understand what factors are involved in the accuracy.

1.First, choose the appropriate processing tool and tool handle structure.

      The rational use and selection of cutting tools will be an important factor affecting the quality of nc machining. In high-speed machining, coated hard alloy will replace most of the sharp steel cutting tools, including reamer, ball cutter, boring cutter and other simple tools, and be applied to most of the conventional machining fields.Usually in the rough machining we will choose a large diameter of the tool for processing, in order to save costs and reduce the difficulty of tool manufacturing, we will use clamp-type cemented carbide blade, as far as possible to make the rough machining chip more; The insert cutter with high rotation speed and high feed is used in semi-finishing to make the cutting speed of semi-finishing fast. When finishing, try to use the high precision round head mirror blade on the carbide tool rod to ensure the strength of the tool and the tool rod, which will save the expensive cost of selecting the whole alloy tool while maintaining the machining accuracy.We also need to pay attention to finish machining parts in processing on the profile radius must be greater than or equal to the radius of the cutter, selects the radius is less than the corner radius of the cutting tool or diagonal lines in the form of circular arc interpolation interpolation method for processing, so that you can avoid using linear interpolation and cut occurred, ensure the quality of the mould finishing.

2. Reasonable CNC machining scheme

      In high speed and high precision machining, the importance of nc process design has been raised to a higher position, the whole process of machining must be controlled, any mistake will have a serious impact on the quality of mold, so the process plan will play a decisive role in the quality of machining. CNC machining process design can be considered as a system of parts from the blank to the parts processing and forming of the state of the program control.

      A good process plan in the whole design process is difficult, need to go through the practice of continuous summary and modification to get, in the design process to consider a lot of information, the relationship between the information is extremely complex, this must be through the actual work experience of the programmer to ensure. Therefore, the design quality of process plan mainly depends on the experience and level of technicians.

3.Scientific management and maintenance

      The positioning accuracy of nc machine tool is an important precision which is different from that of ordinary machine tool. It and the geometric precision of machine tool have important influence on the cutting precision of machine tool, especially on the hole spacing error in the pore machining.A CNC machine tool can be from it can achieve the positioning accuracy of its machining accuracy, so the CNC machine tool positioning accuracy detection and compensation is necessary to ensure the quality of processing. In addition, the reverse deviation will increase with the gradual increase of motion pair clearance caused by wear, so it is necessary to measure and compensate the reverse deviation of each coordinate axis of the machine tool regularly

4.Adopt more advanced CNC machining equipment

      In CNC machining, the mold machining precision is related to the equipment, the more advanced processing equipment can achieve higher machining precision.So choose more advanced CNC equipment, is the most straightforward way. In order to meet the needs of customers for higher machining accuracy, Duochuang prototype has replaced all CNC equipment with more advanced ones, achieving the highest accuracy of 0.02mm on the hardware.

     The above are the four points summarized by Duochuang prototype in the process of production , which are related to the processing accuracy. Of course, the quality of prototype is related to the accuracy, but it is not completely dependent on the accuracy. Only by managing every link of the details well, can the quality of prototype be improved greatly.Duochuang prototype has been accumulated rich experience in this aspect, if you need to make high precision CNC prototype, Please contact us.