3 Fundamentals of press design

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530 Solid forming (Forging) ejector electronic press control system dial feed plate punch holder monobloc press frame punch holder link drive system Fig. 6.8.21 Vertical minting press blank control and discharge device feed hopper channel can be swivelled out or moved completely out of the press for die change. In the following channel, the blanks are checked for diameter and thickness related defects, and ejected if found to be outside the permissible tolerance (Fig. 6.8.23).The standstill periods caused by off-size blanks would seriously impair the efficiency of high-speed machines. Therefore, coin blanks with defects are automatically segregated in a control station while the machine is running. If a defective blank reaches the control station, the flow of blanks is interrupted. The interruption triggers a sensor, which disables further blank feed from the hopper by means of a stop cylinder. The gauge jaws are opened by means of a lift cylinder and the off-size blank is ejected into a collecting tray. The gauge jaws return to their home position, the stop cylinder opens and blank feed continues. The described cycle takes only fractions of a second, ensuring a continuous supply of blanks and preventing production disruptions. Metal Forming Handbook / Schuler (c) Springer-Verlag Berlin Heidelberg 1998 slide main drive
Presses used for solid forming hopper Fig. 6.8.22 Schematic of the rotary feed system automatic blank discharge feed channel In horizontal operating machines, the blanks drop under the force of gravity into the indexed dial feed plate, where they are fed towards the coining station. To carry out the coining operation, the indexed plate stops. After coining, the coin is ejected from the minting collar by the ejector, which is connected to the press slide, and discharged. The short stroke of the link drive system permits the ejector movement to be derived directly from the slide. The ejector travel is reduced again in proportion to the slide stroke by means of a system of levers. Consequently, temporal offset between the two movements, as a result of tolerances and clearances in the drive elements, is eliminated. The system is not subject to wear, as neither cams nor rollers are used. The elastic deflection of the press frame which takes place during coining is measured by a quartz crystal transducer and fed via a charge Metal Forming Handbook / Schuler (c) Springer-Verlag Berlin Heidelberg 1998 531
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Metal Forming Handbook /Schuler (c)
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123 METAL FORMING Metal Forming Han
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Preface Following the long traditio
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Contributors ADAM, K., Dipl.-Ing. (
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Contents Index of formula symbols .
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Contents 3.6.5 Measures to be under
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Contents 5.3 Component development
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Index of formula symbols � rib an
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Index of formular symbols d inner d
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Index of formular symbols p G avera
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1 Introduction Technology has exert
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Introduction Fig. 1.1 L. Schuler, M
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2 Basic principles of metal forming
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Methods of forming and cutting tech
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2 Basic principles of metal forming
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Basic terms in which � 1 is defor
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Basic terms cation of an exterior f
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Basic terms fracture, this characte
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3 Fundamentals of press design 3.1
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Press types and press construction
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Mechanical presses , distance s[m]
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Mechanical presses stress on the fr
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Mechanical presses stroke [mm] 900
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Mechanical presses This offers a nu
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Mechanical presses or bottom mounte
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Mechanical presses In crossbar tran
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Mechanical presses with a long serv
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Mechanical presses Fig. 3.2.9 Drive
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Mechanical presses Overload safety
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Mechanical presses Slide cushion So
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Mechanical presses imum pneumatic p
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Hydraulic presses Design of the dri
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Hydraulic presses pumps suspended i
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Hydraulic presses pressure in the p
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Hydraulic presses F 4 I P (F ) max
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Hydraulic presses are two variation
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Hydraulic presses presscrown retain
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Changing dies to a weight of 3 t pr
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Changing dies gearwithguidinggroove
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Changing dies are changed in solid
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Changing dies hydraulic clamping me
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Press control systems 3.5.3 Operati
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Press control systems 3.5.4 Structu
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Press control systems The communica
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Press control systems Fig. 3.5.5 PL
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Press control systems Fig. 3.5.7 Sw
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Press control systems Other approac
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Press safety and certification 3.6.
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Press safety and certification with
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Press safety and certification - st
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Press safety and certification Manu
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Press safety and certification pres
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Press safety and certification 3.6.
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Press safety and certification tion
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Casting components for presses Fig.
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4 Sheet metal forming and blanking
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Principles of die manufacture icall
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Principles of die manufacture becau
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Principles of die manufacture go-ah
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Principles of die manufacture produ
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Principles of die manufacture Fig.
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Principles of die manufacture a b c
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Principles of die manufacture the p
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Metal Forming Handbook / Schuler (c
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Principles of die manufacture 0.00
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Principles of die manufacture blank
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Metal Forming Handbook / Schuler (c
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Principles of die manufacture how i
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Principles of die manufacture spott
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Deep drawing and stretch drawing me
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Deep drawing and stretch drawing In
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Deep drawing and stretch drawing ac
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Deep drawing and stretch drawing 3
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Deep drawing and stretch drawing 20
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Deep drawing and stretch drawing β
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Deep drawing and stretch drawing Ex
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Deep drawing and stretch drawing Bl
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Deep drawing and stretch drawing bl
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Deep drawing and stretch drawing Ta
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Deep drawing and stretch drawing Au
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Deep drawing and stretch drawing Ti
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Deep drawing and stretch drawing Hi
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Deep drawing and stretch drawing -
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Deep drawing and stretch drawing -
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Deep drawing and stretch drawing se
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Deep drawing and stretch drawing fo
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Deep drawing and stretch drawing pu
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Deep drawing and stretch drawing ag
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Coil lines Fig. 4.3.1 Coil line for
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Coil lines Fig. 4.3.3 Compact desig
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Sheet metal forming lines In the ca
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Sheet metal forming lines Fig. 4.4.
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Sheet metal forming lines ing of th
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Sheet metal forming lines (Fig. 4.4
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Sheet metal forming lines The two l
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Sheet metal forming lines 1,860mm a
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Sheet metal forming lines ver’s c
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Sheet metal forming lines During th
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Sheet metal forming lines 4.4.4 Des
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Sheet metal forming lines individua
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Sheet metal forming lines As early
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Sheet metal forming lines In modern
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Sheet metal forming lines 4.4.6 Tra
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Sheet metal forming lines protects
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Sheet metal forming lines Within th
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Sheet metal forming lines power req
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Sheet metal forming lines Press lay
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Sheet metal forming lines higher st
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Sheet metal forming lines Draw cush
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Sheet metal forming lines These com
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Sheet metal forming lines motion cu
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Sheet metal forming lines increase
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Sheet metal forming lines (cf. Fig.
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Sheet metal forming lines larly str
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Sheet metal forming lines ing parts
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Sheet metal forming lines - efficie
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Sheet metal forming lines - Automat
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Sheet metal forming lines Local ope
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Sheet metal forming lines modules a
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Sheet metal forming lines Table 4.4
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Sheet metal forming lines sion foll
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Blanking processes to complete brea
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Blanking processes Fig. 4.5.5 Top-t
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Blanking processes 56.8% 65.0% 67.4
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Blanking processes a configuration
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Blanking processes flat punch U bev
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Blanking processes Using these equa
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Blanking processes x S = 66. 6 (s a
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Blanking processes 0.18 10 10.36 27
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Shearing lines Fig. 4.6.1 Slitting
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Shearing lines The blanking process
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Shearing lines Blanking presses for
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Shearing lines 4.6.3 High-speed bla
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Shearing lines mass counterbalance
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Shearing lines Fig. 4.6.9 Influence
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Shearing lines Fig. 4.6.11 Rotor an
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Shearing lines Fig. 4.6.13 Complete
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Shearing lines Fig. 4.6.15 Complete
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Shearing lines Fig. 4.6.17 Flexible
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Shearing lines which run, backlash-
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Shearing lines that up to 150 strok
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Shearing lines Fig. 4.6.21 Automati
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Shearing lines Fig. 4.6.24 Passenge
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Shearing lines F F resistance weldi
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Shearing lines In contrast to conve
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Shearing lines The stripper plate i
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Shearing lines Fig. 4.6.32 Examples
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Shearing lines - provision of all i
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Shearing lines Fig. 4.6.35 Machine
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Shearing lines Fig. 4.6.37 Failure
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Shearing lines Structure of the ele
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Shearing lines interference, or whe
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Fine blanking - smaller dimensional
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Fine blanking f i blanking force F
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Fine blanking blanking force F s I
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Fine blanking plate of the die, whi
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Fine blanking case hardening nitrit
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Fine blanking not been soft anneale
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Fine blanking it is also possible t
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Fine blanking Example: We wish to p
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Fine blanking s h S1 tearing E frac
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Fine blanking punches, as well as t
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Fine blanking subsequently quenched
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Fine blanking Fig. 4.7.22 Two-stati
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Fine blanking Blanking plate 2 is l
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Fine blanking 1 2 5 6 3 Fig. 4.7.25
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Fine blanking blankingpunch 1 2 inn
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Fine blanking vee-ring piston diehe
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Fine blanking measuring the pressur
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Fine blanking pallets reach the sta
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Bending Table 4.8.1 gives the small
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Bending Accordingly, the necessary
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Bending Example: You wish to bend a
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Bending F F b or b 2 b ⋅s ⋅R =
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Bending Fig. 4.8.7 Roll forming: ro
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Bending Fig. 4.8.13 Hat sections Fi
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Bending Table 4.8.3: Material coeff
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Bending The roll stand for profile
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Bending frame Fig. 4.8.23 Work shaf
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Bending Fig. 4.8.25 Roller straight
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Bending W W t t W Wma s Fig. 4.8.28
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4 Sheet metal forming and blanking
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Organization of stamping plants Whe
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Organization of stamping plants Tab
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Organization of stamping plants lic
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Organization of stamping plants bat
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Organization of stamping plants Tab
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Organization of stamping plants ele
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Organization of stamping plants une
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5 Hydroforming 5.1 General One of t
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Process technology and example appl
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5 Hydroforming 5.3 Component develo
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Component development a component d
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Component development 100% D D 75%
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Component development Pure expansio
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Die engineering diameter and stroke
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5 Hydroforming 5.5 Materials and pr
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Materials and preforms for producin
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Presses for hydroforming Controllab
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5 Hydroforming 5.7 General consider
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General considerations inward hole
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6 Solid forming (Forging) 6.1 Gener
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General lets that can be produced t
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General Fig. 6.1.4 Examples of coin
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General Table 6.1.1: Comparison bet
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6 Solid forming (Forging) 6.2 Benef
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Benefits of solid forming 6.2.2 Wor
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Benefits of solid forming range”
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Benefits of solid forming sions fro
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Benefits of solid forming Where no
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Materials, billet production and su
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Formed part and process plan requir
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Formed part and process plan 6.4.2
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6 Solid forming (Forging) 6.5 Force
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Force and work requirement d 0 d 2
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Force and work requirement For die
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Force and work requirement The mini
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Force and work requirement dies) (c
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Page 505 and 506: 6 Solid forming (Forging) 6.7 Die d
Page 507 and 508: Die design wedge adjustment auxilia
Page 509 and 510: Die design Table 6.7.1: Modular sys
Page 511 and 512: Die design Fig. 6.7.5 Shearing die
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Page 519 and 520: Die design Powder metal-manufacture
Page 521 and 522: Die design ledeburitic 12 % chromiu
Page 523 and 524: Die design system integrated into b
Page 525 and 526: 6 Solid forming (Forging) 6.8 Press
Page 527 and 528: Presses used for solid forming mult
Page 529 and 530: Presses used for solid forming slid
Page 531 and 532: Presses used for solid forming Fig.
Page 533 and 534: Presses used for solid forming duct
Page 537 and 538: Presses used for solid forming 6.8.
Page 541 and 542: Presses used for solid forming tati
Page 543 and 544: Presses used for solid forming adeq
Page 545 and 546: Presses used for solid forming Embo
Page 547 and 548: Presses used for solid forming ment
Page 549: Presses used for solid forming feed
Page 553 and 554: Presses used for solid forming coin
Page 555 and 556: Presses used for solid forming Univ
Page 557 and 558: Presses used for solid forming Meda
Page 559 and 560: Presses used for solid forming CNC-
Page 561 and 562: Presses used for solid forming forc
Page 563 and 564: Index A.S.T.M.-standard 451 abrasio
Page 565 and 566: Index cylinder -, counterpressure 4
Page 567 and 568: Index flying shear 288 flywheel 51-
Page 569 and 570: Index modified top drive 205-207 mo
Page 571 and 572: Index sand blasting 460 sandwich co
Page 573: Index washing/cleaning machine 219
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3 Fundamentals of press design

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