Material 58 18. Superca1cine Substrate Densities 19. Tap Density and Sintered Density of Copper Spheres of Various Size Distributions (Sintered for 8 hr at 950 0 C in a dynamic vacuum) 20. Properties and Costs of Metal Matrix Candidates ix MULTIBARRIER WASTE FORMS PART I: DEVELOPMENT 4 Matrix EncaQsulation Pb-10Sn vacuum cast 400 0 C Al-12Si vacuum cast 650°C Al-12Si vacuum cast 650 0 C Cu gravity sintered 9000C-8 hr Uncoated supercalcine Vacuum-cast PyC/ Al20 3-coated supercaldne Glass-coated supercalcine Vacuum-cast Simulated wasteglass marbles Vacuum-cast FIGURE 2. Polished Sections of the One-Liter Multibarrier Demonstrations 9
The cutting force has a significant effect on the geometry and tolerances (e.g. circularity, deviation of circular shape or cylindricity, ovality, conical surfaces) of the workpiece (especially in the case of thin and slim parts), which are key criteria for the products. Moreover, they also affect the tool wear process. Due to the development of technology, the new tool (coatings) and workpiece materials require the exact knowledge of the cutting forces, their investigation during turning is an important field of cutting studies. In the case of turning, the kinetic conditions of which can be seen in Fig. 1, a spatial force system is generated.A new frictional model was constructed by Rusinek et al.[1] in case of orthogonal cutting that took the forces acting on the tool face as well as on the tool flank into consideration. Furthermore, the influence of the tool flank forces on system dynamics was studied.The mathematical modelling of cutting processes can be based on two methods: creating mechanical or phenomenological models. In recent years, several researchers have investigated the machinability of different types of materials, dealt with optimizing, measuring, and calculating cutting forces. The investigation of the machinability of different types of steel is still a basic field of cutting studies.Kulkarni et al.[2] carried out cutting tests on AISI304 austenite stainless steel by using AlTiCrN coated inserts. In their experimental runs, the depth of cut was held at a constant value (a p = 1 mm), the limits of the other cutting parameters were v c = 140 m/min to 320 m/min; f = 0.08 mm to 0.26 mm. The generated forces and the cutting temperature were studied. They said that regarding the force components, the effect of the feed was the most significant; however, the influence of cutting speed was negligible. In contrast, • Novel geometric parameters of the chip cross-section were introduced.
Application of a Force Model Adapted for the Precise Turning of Various Metallic Materials• The main values of specific cutting forces characterizing fine turning technology were theoretically calculated.• The applicability of the equations for each material used was investigated by residuals.
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