Characterization of Tool Clamping Conditions in Forging Hammers
,
 
,
 
,
 
 
 
More details
Hide details
1
Forming Machines, Fraunhofer Institute for Machine Tools an Forming Technology, Germany
2
Chair of Machine Tools Development and Adaptive Controls, Dresden University of Technology TUD, Germany
CORRESPONDING AUTHOR
Nico Wagner   

Forming Machines, Fraunhofer Institute for Machine Tools an Forming Technology, Reichenhainerstraße 88, 09126, Chemnitz, Germany
Submission date: 2022-02-15
Final revision date: 2022-04-30
Acceptance date: 2022-05-18
Online publication date: 2022-06-04
 
 
KEYWORDS
TOPICS
ABSTRACT
The present work addresses the topic of die clamping at the forging hammer in the context of the definition of a current requirement profile as well as the evaluation of individual influencing variables on the clamping process. In addition to the presentation of survey results for the requirements profile, the first part focus on the sensible minimization of influencing variables to be investigated and on the verification of a possible evaluation meth-od. Based on this, in the second part, exemplary influencing variables on the clamping condition are investigat-ed by means of FEM, whereby it can be shown, as an example, that the forging process heat flow is without sig-nificant influence on the clamping state of the dies.
 
REFERENCES (18)
1.
WECK M., BRECHER C., 2005, Werkzeugmaschinen 1, 6th Edition, Springer-Vieweg, Berlin Heidelberg.
 
2.
ISERLOHN R.H., ISERLOHN H.H., BÖNEN R.L., 2013, Massivumformung Kurz Und Bündig, Industrieverband Massivumformung, ISBN: 978-3-928726-32-0.
 
3.
Schulergroup, 2017, Schmiedehämmer in der Massivumformung, Schuler Pressen GmbH.
 
4.
Feuerbach GmbH, 1985, Wedge Assembly for Forge Die Fixing – Has Concave Matching with Convex Wedge Face and Clamp Screw Shank with Radial Projections at Antinode, DE 2951662 A1.
 
5.
BROER T., Ruest- und Schmiedetechnik; 2010, Clamping Wedge System for Holding Dies During Forging and Pressing - Comprises Wedge, Opposing Wedge and Clamping Screw With Gap in Between and Inward Facing Projections in Vibrating Area, DE 4029171 A1.
 
6.
BROER T., Ruest- und Schmiedetechnik, 2004, Clamping Wedge Device, DE 9414094 U1.
 
7.
ZIMMER H., GmbH, 2006, Clamping Wedge Device for Looking of Dies, DE 29604287 U1.
 
8.
BROER T., 2009, Wedge Device, DE 29916856 U1.
 
9.
BROER T., 2013, Clamping Wedge Device for Fixing Tools on Machine Tools, Especially Forging Dies in Forging Hammers/Presses, Comprises a Contact Plane Having a Thicker Section Intersecting the Under Sides of a Wedge and Counter-Wedge, DE 20303910 U1.
 
10.
BROER T., BROER S., BROER F., 2015, Spannkeilvorrichtung zur Befestigung von Werkzeugen an Werkzeugma schinen, EP 2604361 A1.
 
11.
BROER T., 2016, Clamping Wedge Device to Fit Countersinks and Hammers to Machine Tools Has Double Wedge Element, Two Counter-Wedge Elements and Clamping Element, DE 202006013794 U1.
 
12.
Langstein and Schemann GmbH, 2012, Tool-Clamp for Shaping Machine – Moves Wedge in Slightly-Oblique Recess and Which Bears Against Tool Base, DE 4225021 C1.
 
13.
Heyco Werk Heynen and Co., 1957, Hydraulic Clamping Device for Aligning and Clamping of Tools, in Particular Hammergesenken, DE 1009893 B.
 
14.
Langenstein und Schemann GmbH., 1982, Hydraulic Clamp for Power Press Or Hammer – Has Row of Pistons Exerting Pressure on Rectangular Clamping Plate, DE 2731078 A1.
 
15.
HOFMANN, G., 1987, Die Mountings, DE 3429013 C2.
 
16.
Stahlwerke Brueninghaus GmbH., 1959, Hydraulic Clamping Bar for Clamping of Tools, in Particular Dies Schmiedesaetteln od. Like, DE 1056904 B,.
 
17.
Langenstein und Schemann GmbH., 1961, Hydraulic Clamping Wedge for Fixing Dies, DE 1106583 B.
 
18.
PEROVIC B., 2013, Vorrichtungen im Werkzeugmaschinenbau, Grundlagen, Berechnung und Konstruktion, Springerverlag, Berlin Heidelberg.
 
eISSN:2391-8071
ISSN:1895-7595