The Machining Process and Stress-Strain Analysis of the Imprinter Bottom Roller Based on FEM

The imprinter bottom roller is under very high linear pressure during the work, which often causes wear and damage between bottom roller and anvil roller. Traditionally, the extra strength design method is frequently used in the design of imprinter bottom roller, which leads to the waste of materials and increase of weights. So, reasonable processing craft and appropriate theoretical analysis method should be adopted to improve the manufacturing of bottom roller and make the material strength into full use, in the condition of meeting the structure safety standard. This paper gives a brief analysis of the process craft of bottom roller and uses finite element technique to give the bottom roller numerical simulation and FEA of its deflection and strength. The results show that: in the process of work, the distribution of stress changes largely and unevenly. The stress and deformation in middle part prove the largest with decreasing to both sides successively. The imprinter bottom roller produces a maximum displacement of 0.0516 mm, which meets the work requirements.