Figure 1 Figure II 2 master material deformation law, reasonably determine the tolerance <br> <br> carbide reamer cutting conditions due to the different high-speed steel and cemented carbide reamer of the reamer, the former is squeezed cutting plus cut, so much higher than the high-speed heat Steel reamer. When using high-speed reaming with a carbide reamer, the maximum heat generation can reach 800 °C. When the workpiece is cooled by heat, the internal hole shrinkage of the workpiece is large, and the reamer will not be taken out immediately and will be bitten. The hardness, unit cutting force and heat generated by reaming in the reaming are shown in Table 2. Previous page Butterfly Brand Knife,Real Butterfly Knifes,Practice Butterfly Knifes,Butterfly Tool Knife YangJiang Junxiong Trading & Industry Company Co.,Ltd , https://www.cn-sundo.com
The hardness and pore size of different materials are changed as shown in Figure 1.
3 correct development of enterprise standards, expanding the use of carbide reamer <br> <br> can be seen from the above analysis, we can not be rigidly applied in the development of standard carbide reamer higher standards, international standards and national adoption Under the premise of the general principle of standards, we must also pay attention to the establishment of internal control standards. The tolerance principle of cemented carbide reamer for different characteristics has been confirmed by practice and is widely accepted. The tolerance zone is shown in Figure 2.
It can be seen from Fig. 2 that different tolerance zones can be designed according to the actual situation. As the material hardness changes, the amount of material shrinkage after reaming also changes, and the manufacturing tolerance of the reamer should fluctuate with the expansion or contraction value of the material, and can also exceed the product tolerance zone.