Ductile properties of boron steels for cold die forging

1992 ◽  
Vol 34 (3) ◽  
pp. 178-183 ◽  
Author(s):  
A. Ya. Zaslavskii ◽  
T. L. Mushtakova
Keyword(s):  
Die Forging ◽  
Boron Steels

SAFETY DURING OPERATION OF FORGING AND STAMPING EQUIPMENT

2020 ◽  
Author(s):  
K.O. Kobzev ◽  
S.A. Vyalov ◽  
E.S. Bozhko ◽  
I.A. Zolotuhina ◽  
◽  
...  
Keyword(s):  
Production Equipment ◽  
Safety Requirements ◽  
Die Forging ◽  
Main Production ◽  
Hot Die Forging ◽  
General Safety

This article discusses the General safety requirements for the main production equipment, as well as General safety requirements for the tool and die tooling. Possible difficulties in hot-die forging shopsand ways to solve them in various situations are described.

Calculation of economical effi ciency of industrial application of die-forging hammer fi ller ram model M2140

2020 ◽  
pp. 262-266
Author(s):  
V.Yu. Lavrinenko ◽  
T.Kh. Ayupov
Keyword(s):  
Industrial Application ◽  
Die Forging ◽  
Effi Ciency

The calculation of economical effi ciency of industrial application of die-forging hammer fi ller ram model M2140 with fаlling parts mass 1000 kg in Moscow plant "Avangard" is presented.

scholarly journals Process chain for the manufacture of hybrid bearing bushings

2021 ◽  
Vol 15 (2) ◽  
pp. 137-150
Author(s):  
Susanne Elisabeth Thürer ◽  
Anna Chugreeva ◽  
Norman Heimes ◽  
Johanna Uhe ◽  
Bernd-Arno Behrens ◽  
...  
Keyword(s):  
Extrusion Process ◽  
Steel Tube ◽  
Case Hardening ◽  
Process Chain ◽  
Forming Process ◽  
Die Forging ◽  
Material Contact ◽  
Hybrid Bearing ◽  
Case Hardening Steel ◽  
Tailored Forming

AbstractThe current study presents a novel Tailored Forming process chain developed for the production of hybrid bearing bushings. In a first step, semi-finished products in the form of locally reinforced hollow profiles were produced using a new co-extrusion process. For this purpose, a modular tool concept was developed in which a steel tube made of a case-hardening steel, either C15 (AISI 1015) or 20MnCr5 (AISI 5120), is fed laterally into the tool. Inside the welding chamber, the steel tube is joined with the extruded aluminum alloy EN AW-6082. In the second step, sections from the compound profiles were formed into hybrid bearing bushings by die forging. In order to set the required forming temperatures for each material—aluminum and steel—simultaneously, a tailored heating strategy was developed, which enabled successful die forging of the hybrid workpiece to the desired bearing bushing geometry. Using either of the case-hardening steels in combination with aluminum, this novel process chain made it possible to produce intact hybrid bearing bushings, which showed both macroscopically and microscopically intimate material contact inside the compound zone.

Die Forging Process Simulation of a Connecting Rod

2011 ◽  
Vol 704-705 ◽  
pp. 302-307
Author(s):  
Lei Xu ◽  
Guang Ze Dai ◽  
Xing Ming Huang ◽  
Jing Han ◽  
Jun Wen Zhao
Keyword(s):  
Reduction Rate ◽  
Temperature Fields ◽  
Stress Fields ◽  
Connecting Rod ◽  
Preheat Temperature ◽  
Forging Process ◽  
Optimum Parameters ◽  
Die Forging ◽  
High Level ◽  
Deform 3D

Numerical simulation of connecting rod die forging processing was performed by finite element method (FEM) software Deform 3D. The changes of the temperature fields, stress fields of the billet and dies, and upper setting force-stroke curve during the die forging were obtained. The simulation results show that (1) the increase of the fillet radius of dies could effectively reduce the stress concentration so that to prevent the die crack arising at high level stress; (2) the optimum parameters of die forging process are 430°C for forging temperature, 200°C for preheat temperature of dies and 80mm/s for reduction rate by comparing both fields of the stress and temperature during different forging process..

Grain Boundary Films in Boron Steels

JOM ◽  
1953 ◽  
Vol 5 (3) ◽  
pp. 445-446
Author(s):  
J. W. Spretnak ◽  
Rudolph Speiser
Keyword(s):  
Grain Boundary ◽  
Boundary Films ◽  
Boron Steels

Research of stamping of unequal channel bars. Part 3. Force parameters and shape change of the billet when extruding channels. 1. Kinematic and stress states of the billet

2021 ◽  
pp. 65-71
Author(s):  
A.L. Vorontsov
Keyword(s):  
Plastic Flow ◽  
Complete System ◽  
Shape Change ◽  
Plane Deformation ◽  
System Of Equations ◽  
Flow Rates ◽  
Die Forging ◽  
The Matrix ◽  
Stress States ◽  
Theory Of Plastic Flow

On the basis of the complete system of equations of the theory of plastic flow, the kinematic and stress states of the billet are determined when the channels are extruded under conditions of plane deformation of the misaligned position of the punch and the matrix. Keywords: die forging, extrusion, misaligned position, punch, matrix, plane deformation, plastic flow rates, stresses. [email protected]

Research of stamping of unequal channel bars. Part 4. Deformed state of the workpiece when extruding channels. 2. Deformations under the punch end

2021 ◽  
pp. 53-57
Author(s):  
A.L. Vorontsov
Keyword(s):  
Plastic Deformation ◽  
Plane Strain ◽  
Deformation Zone ◽  
Plastic Deformation Zone ◽  
Die Forging ◽  
Deformed State

Determination of the deformed state of the workpiece at free extrusion of channels is considered. Formulas are obtained for determining the accumulated deformations at a given point of the plastic deformation zone and extruded walls of the product for any punch working stroke. Keywords: die forging, extrusion, misalignment, punch, matrix, plane strain, accumulated deformations, hardening. [email protected]

Slip Line Field Analysis of a Simple Plane Strain Closed-Die Forging

1989 ◽  
Vol 203 (2) ◽  
pp. 91-99
Author(s):  
M V Srinivas ◽  
P Alva ◽  
S K Biswas
Keyword(s):  
Velocity Field ◽  
Plane Strain ◽  
Slip Line ◽  
Field Analysis ◽  
Line Field ◽  
Slip Line Field ◽  
Die Forging ◽  
Closed Die Forging ◽  
Cavity Filling ◽  
Single Cavity

A slip line field is proposed for symmetrical single-cavity closed-die forging by rough dies. A compatible velocity field is shown to exist. Experiments were conducted using lead workpiece and rough dies. Experimentally observed flow and load were used to validate the proposed slip line field. The slip line field was used to simulate the process in the computer with the objective of studying the influence of flash geometry on cavity filling.

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