The reaming process of stainless steel parts is as follows:
(1) The reaming of stainless steel material mostly uses carbide reamer. The structure and geometric parameters of reamer are different from those of common reamer. In order to enhance the strength of cutter teeth and prevent chip blocking during reaming, the number of reamer teeth is generally small. The manufacturer of stainless steel parts tells you that the front angle of reamer is generally 8 ° ~ 12 °, but in some special cases, in order to achieve high-speed reaming, the front angle of 0 ° ~ 5 ° can also be used; the back angle is generally 8 ° ~ 12 °; the selection of main deflection angle depends on the different holes, in general, the through hole is 15 ° ~ 30 °, and the through hole is 45 °; in order to make the chips discharged forward, the angle of blade inclination can also be increased properly The angle of blade inclination is generally 10 ° ~ 20 °; the width of blade belt is Zero point one ~ 0.15mm The reverse taper of reamer shall be larger than that of common reamer, and the carbide reamer is generally zero point two five ~ 0.5mm/100mm , high speed steel reamer is Zero point one ~ 0.25mm/100mm The length of reamer correction part is generally 65% ~ 80% of common reamer, and the length of cylinder part is 40% ~ 50% of common reamer.
(2) When selecting the cutting amount, the feed amount is zero point zero eight ~ 0.4mm/r The cutting speed is 10-20 M / min, and the coarse reaming allowance is generally Zero point two ~ 0.3mm The allowance of finish reaming is Zero point one ~ 0.2mm 。 Hard alloy cutter shall be used for coarse reaming and high speed steel cutter shall be used for fine reaming.
(3) The manufacturer of stainless steel parts tells you that when the cutting fluid chooses stainless steel material for reaming, the oil or molybdenum disulfide used in the total loss system can be used as the cooling medium.