The article presents a new thermo-mechanical machining method for the manufacture of long low-rigidity shafts which combines straightening and heat treatment operations. A fixture for thermo-mechanical treatment of long low-rigidity shafts was designed and used in tests which involved axial straightening of shafts combined with a quenching operation (performed to increase the corrosion resistance of the steel used as stock material). The study showed that an analysis of the initial deflections of semi-finished shafts of different dimensions and determination of the maximum corrective deflection in the device could be used as a basis for performing axial straightening of shaft workpieces with simultaneous heat treatment and correction of the initial deflection of the workpiece. The deflection is corrected by stretching the fibers of the stock material, at any cross-section of the shaft, up to the yield point and generating residual stresses symmetrical to the axis of the workpiece. These processes allow to increase the accuracy and stability of the geometric shape of the shaft.

本文提出了一种新的热机械加工方法，该方法用于制造长的低刚性轴，该方法将矫直和热处理操作结合在一起。设计了一种用于长低刚性轴的热机械处理的夹具，并将其用于测试中，该测试涉及轴的轴向校直和淬火操作（用于提高用作原材料的钢的耐腐蚀性）。研究表明，对不同尺寸的半成品轴的初始挠度进行分析，并确定装置中的最大校正挠度，可作为执行轴工件轴向校直，同时进行热处理和初始修正的基础。工件的挠度。通过在轴的任何横截面处拉伸原料纤维，直到屈服点并产生与工件轴线对称的残余应力，可以校正挠度。这些过程可以提高轴的几何形状的准确性和稳定性。