A Study of the Mechanics of Closed Die Forging. Methods for Estimating Flash Gap Dimensions and Flash Weight in Closed Die Steel Forging PDF Download
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Author: T. Altan
Publisher:
ISBN:
Category :
Languages : en
Pages : 34
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Book Description
The report describes several empirical methods for estimating flash-gap dimensions in closed-die forging. Most of the methods suggested are based on statistical analysis of existing data on weight, size, and complexity of over 3000 forgings. A method for deriving a mathematical expression of shape difficulty in forging has been suggested by some Soviet workers. This shape-difficulty factor is shown to be extremely useful in predicting flash-gap dimensions and flash weight. With some refinement, the shape factor may also prove useful in process design, cost estimating, and assisting engineers to make decisions about feasibility of manufacturing. (Author).
Author: T. Altan
Publisher:
ISBN:
Category :
Languages : en
Pages : 34
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Book Description
The report describes several empirical methods for estimating flash-gap dimensions in closed-die forging. Most of the methods suggested are based on statistical analysis of existing data on weight, size, and complexity of over 3000 forgings. A method for deriving a mathematical expression of shape difficulty in forging has been suggested by some Soviet workers. This shape-difficulty factor is shown to be extremely useful in predicting flash-gap dimensions and flash weight. With some refinement, the shape factor may also prove useful in process design, cost estimating, and assisting engineers to make decisions about feasibility of manufacturing. (Author).
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 384
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Book Description
Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 398
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Book Description
Author: Serope Kalpakjian
Publisher:
ISBN:
Category : Dies (Metal-working)
Languages : en
Pages : 42
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Book Description
The study surveys the present state of knowledge on the design of die sequences in closed-die forging with a view toward studying the feasibility of establishing an analytical procedure. The contents are comprised of (1) a review of present methods practiced in die-sequency design, (2) a review of factors involved in metal flow, and (3) examples of analytical work that might constitute the background for a more rational study of the closed-die-forging process. (Author).
Author: Taylan Altan
Publisher:
ISBN:
Category : Blacksmithing
Languages : en
Pages : 512
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Book Description
The handbook provides design engineers with up-to-date information about the many aspects of forging including descriptions of important developments made more recently by industry and/or government. The handbook describes suitable measures for in-process quality control and quality assurance, summarizes relationships between forging practices and important mechanical properties and compares various forging devices to aid in equipment selection. Attention is also given to describing practices for relatively new materials and emerging forging practices. (Modified author abstract).
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 31
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Book Description
The slab method of analysis for predicting forging stresses and loads has been applied to longitudinal (axial) flow, i.e., to extrusion-type forging. Both plane strain and axisymmetric deformations were considered. The flow models have been further studied, and the necessary equations for general use are derived. The flash-line location has been shown to have little effect upon maximum forging load if die-cooling effects are not too large. The present study represents a fundamental method for obtaining detailed information on the mechanics of closed-die forging.
Author: J. H. L. Thé
Publisher:
ISBN:
Category : Boundary layer
Languages : en
Pages : 9
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Book Description
Author:
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 1336
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Author: Taylan Altan
Publisher:
ISBN:
Category :
Languages : en
Pages : 188
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Book Description
The objectives of the manufacturing improvement program was to establish the applications and limitations of analytical approaches in closed-die forging. The study has been concerned mainly with the study of mechanics and interactions of important variables related to the workpieces, the dies, and the equipment selected for forging. Three industrial forging companies participated in the program in conducting forging trials using presses instrumented to determining loads, stresses, and energies used in forging various parts so that correlations between predicted and actual data could be made. Quantitative assessments were made of deformation rates, temperatures, flash geometries, part shapes, materials, and forces required in the forging of aluminum, steel, and titanium parts. (Author).
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ISBN:
Category : Government publications
Languages : en
Pages : 728
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Book Description
