Cutting Simulation Research On Bi-metal Band-saw Blade And Its Structure Optimization

Bi-metal band-saw blades are widely used to cut workpiece. It is an importantmachining way. Since the material types needed to be saw is more and more, therequirements of cutting performance of the bandsaw are also more strictly. Therefore,it is significant to study the sawing process and optimize geometric factors of thebandsaw. All of those are important to the practical production and research on newtooth shape of the bimetal bandsaw.First, the two-dimensional and three-dimensional sawing models for thebi-mental bandsaw are set up based on the design standards and practicalmeasurements. According to the metal cutting simulation software AdvantEdge FEMsawing modules,the two-dimensional sawing model is applied to study therelationship between sawing performance and the former angle and back angle, andthe three-dimensional sawing model is employed to study the relationship amongsawing performance and the former angle, back angle, partial tooth quantity andpartial tooth angle. Second,we designed level orthogonal simulation experimentproject and uniform experimental simulation test scheme for studing the articlebandsaw the geometric parameters.It can be concluded from the analysis that the mainsawing force goes up when the partial tooth quantity and partial tooth angle areincreased; the main sawing force goes down when former angle and back angle areincreased.With orthogonal experiments, the optimal combination of the geometricfactors are computed, and the values of γ (former angle), α (after angle), φ (partialtooth angle), λ (partial tooth quantity) are around10°,30°,0.6mm,10°.Finally, thesawing forces under different working conditions are obtained by experiments. Theexperimental results show that the sawing simulation is reasonable.The results indicate that former angle, back angle, partial tooth quantity andpartial tooth angle influence sawing performance and partial tooth quantity is the mostserious one among those factors. The finite element analysis model for the doublemental bandsaw is useful to predict the values for mostly physic factors in sawingprocess. It can either be used to design or develop new bandsaw or theoretically studyefficient and low-cost bandsaw.