منابع مشابه
analysis of forming parameters in sheet hydro-forming process
the aim of this paper is to develop a systematic method to analyze the effects of forming parameters on the quality of part formability and determine the optimal combination of the forming parameters for the sheet hydroforming process. in this paper, the effects of four important process parameters namely fluid pressure, friction coefficient at blank/punch interface, gap between die rim block a...
متن کاملMultiscale Friction Modeling for Sheet Metal Forming
The most often used friction model for sheet metal forming simulations is the relative simple Coulomb friction model. This paper presents a more advanced friction model for large scale forming simulations based on the surface change on the micro-scale. The surface texture of a material changes when two surfaces are in contact under a normal load. This is caused by flattening due to combined nor...
متن کاملDeep drawing of 304 L Steel Sheet using Vegetable oils as Forming Lubricants
The study involves the evaluation of deep drawing process using two non edible oils, Pongam (Pongammia pinnata) and Jatropha (Jatropha carcass) as metal forming lubricants. Experiments are conducted on 304L steel sheets under the raw and modified oils with suitable punch and die on a hydraulic press of 200 ton capacity. The punch load, draw-in-length and wall thickness distribution for deep dra...
متن کاملNSF Composite Sheet Forming Workshop.PDF
Background The breakthrough of advanced composite materials in various applications has occurred to a smaller extent than might have been expected previously, mainly due to the high integral costs of composite products: a high cost of manufacturing added to the already expensive raw material. There is a clear need for improved costeffectiveness. The key issues are considered to be: cheaper prod...
متن کاملThe effect of forming parameters on the sheet stretch in incremental sheet forming
The effect of forming parameters during the incremental sheet forming process (ISF) was studied for a circular shape sheet part. ISF is known as a rapid prototyping method to produce sheet metal parts in a batch production series. ISF has found to be useful and advantageous which increases its application in industry. A CNC lathe machine was used in this study because it was easily programmed t...
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ژورنال
عنوان ژورنال: Journal of the Metal Finishing Society of Japan
سال: 1969
ISSN: 1884-3395,0026-0614
DOI: 10.4139/sfj1950.20.405