Process-Integrated Lubrication in Sheet Metal Forming
نویسندگان
چکیده
The deep-drawability of a sheet metal blank is strongly influenced by the tribological conditions prevailing in deep-drawing process. Therefore, new methods to influence tribology represent an important research topic. In this work, application process-integrated lubrication process investigated. Most promising geometries channels and outlet openings are first identified means numerical simulation at example demonstrator Cylindrical test specimens with specified channel additively manufactured installed strip drawing stand. Additive manufacturing enables possibility complex which cannot be conventional methods. A hydraulic metering device for conveying lubricant connected cylindrical specimens. Thus, hydraulically lubricated tests performed. evaluated according force curves fluid mechanical buildup pressure cushion. performance thus analyzed evaluated. By coupled forming SPH simulation, could optimally designed. From practical tests, it achieved that decreases up 27% cushion build up. research, area highest contact normal stresses most optimal parameter regarding friction reduction.
منابع مشابه
Optimization of Process Parameters in Sheet Metal Forming
Figure 1 shows a simplified CAD representation of the tools and initial blank in the stamping process. During stamping, the metal sheet is submitted to large displacements and large elasto-plastic strains; rupture and wrinkles must be avoided, (Figures 2 and 3). The resulting part must also satisfy quality requirements regarding its geometry: after tools removing, the springback effect (Figure ...
متن کاملPrediction of Instability in Planar Anisotropic Sheet Metal Forming Processes
In this paper instability of planar anisotropic sheet metal during a few forming processes is investigated for the first time. For this reason components of the constitutive tangent tensor for planar anisotropic sheets are developed. By using the above tensor location of necking is predicted. Direction of the shear band is also predicted using the acoustic tensor. A finite element program is pr...
متن کاملProcess Simulation for Optimizing Superplastic Forming of Sheet Metal
Superplastic forming (SPF) is conducted in a heated, pressurized die where direct monitoring of critical SPF parameters is extremely difficult. Numerical models provide a critical means of tracking the forming process, allowing the applied gas pressure to be adjusted to maintain optimum SPF behavior throughout the forming process. This paper describes how the MARC finite element code was used t...
متن کاملThe Influence of Sheet Metal Anisotropy on Laser Forming Process
Cold-rolled sheet metal that is often used in laser forming exhibits anisotropic properties, which are mostly caused by preferred orientations of grains developed during the severe plastic deformation such as cold rolling. In the present study, the textures of cold-rolled mild steel sheets are characterized and the influence of the plastic anisotropy on laser forming process is investigated. De...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of manufacturing and materials processing
سال: 2022
ISSN: ['2504-4494']
DOI: https://doi.org/10.3390/jmmp6050121