The application of tool deflection knowledge in process planning to meet geometric tolerances

摘要: Machine tool deflections due to cutting forces can result in dimensional errors on workpieces. The problem is most severe when flexible tools such as end mills are used. When dimensioned features specified with tolerances, process planning should examine the compromise between achieving high productivity rates and meeting dimensions within tolerances. use of geometric dimensioning tolerancing permits interaction size position makes bonus tolerances available. occurring milling first examined modelled using regression methods. A procedure proposed for selecting optimal feed that ensure be met. demonstrated machining a slot down mode. tolerance analysis chart clarifies results test relation standards. need consider transient at exit cut demonstrated.