SPP 1676:
Dry Metal Forming - Sustainable Production through Dry Processing in Metal Forming
Subject Area
Mechanical and Industrial Engineering
Term
from 2013 to 2020
Project identifier
Deutsche Forschungsgemeinschaft (DFG) - Project number 220217456
The process of metal forming already belongs to the most energy-efficient production technologies, due to the high material utilisation. From an economic as well as an ecological point of view, there exists a strong demand to avoid lubricants within metal forming processes. Currently, in all groups of procedures in metal forming, lubricants are applied to reduce friction between work piece and forming tool, to protect semi-finished products and goods against corrosion and to reduce tool load. Within their product life cycle - from production to disposal -, these mostly mineral oil based lubricants have an environmental impact. The central contribution of the Priority Programme is the development of new dry forming processes and to adapt relevant technologies to contribute to the goal of a lubricant-free press plant. Dry metal forming is a process where a work piece leaves the forming tool without the necessity of cleaning or drying before subsequent production steps such as coating or joining processes. The absence of a lubricant as an interlayer between work piece and forming tool results in an intense mechanical interaction between work piece surface and forming tool surface. The main challenge is to control these interactions, even without usage of lubricant. The influences of tribological factors and material properties on the process window are different. Understanding these deducing influences shall enable whether a critical reduction of the process window can be avoided. Focussed on the forming tool, the mechanisms of tool failure are in the foreground. To control the mechanisms of failure behaviour and to make dry forming applicable, an increasing load-bearing capacity of forming tools has to be realised to withstand stresses. This can be achieved by a targeted surface modification or by reducing stresses by process technical measures. The purpose is to implement a stable process by such modifications.
DFG Programme
Priority Programmes
Projects
-
Coordination Funds
(Applicant
Vollertsen, Frank
)
-
Dry Deep Drawing of Aluminium for Automotive Production
(Applicants
Müller, Roland
;
Schubert, Andreas
;
Vollertsen, Frank
)
-
Dry forming of aluminum alloys: from fundamental material and surface characterization to new tribological systems
(Applicants
Bräuer, Günter
;
Groche, Peter
)
-
Dry forming of low alloy steels by direct impact extrusion using a self-lubricating tool coating and structured workpieces
(Applicants
Bergs, Thomas
;
Bobzin, Kirsten
)
-
Functionalising of a-C:H tool coatings and homogenization of the aluminum passive layer for the dry forming of aluminum
(Applicants
Bräuer, Günter
;
Groche, Peter
)
-
Lubricant-free Forming by Affecting Thermoelectric Currents
(Applicant
Volk, Wolfram
)
-
Lubricant free forming with tailored tribological conditions
(Applicants
Merklein, Marion
;
Schmidt, Michael
;
Tremmel, Stephan
)
-
Lubricant free forming with tailored tribological conditions
(Applicants
Merklein, Marion
;
Schmidt, Michael
;
Tremmel, Stephan
)
-
Lubricant-free tribology concepts for cold extrusion by interaction-reduced coatings and structures
(Applicants
Hirt, Gerhard
;
Häfner, Constantin Leon
;
Schneider, Ph.D., Jochen M.
)
-
Micro-structuring and macro-structuring of deep drawing tools for dry forming condition
(Applicants
Beyer, Eckhard
;
Brosius, Alexander
;
Lasagni, Andrés Fabián
)
-
Polished diamond coatings for dry tapering of aluminum
(Applicant
Vollertsen, Frank
)
-
Potentials of dry rotary swaging
(Applicants
Kuhfuß, Bernd
;
Riemer, Oltmann
;
Zoch, Hans-Werner
)
-
Selective thermally oxidized tool surfaces for dry deep drawing
(Applicants
Behrens, Bernd-Arno
;
Maier, Hans Jürgen
)
-
Self-lubricating HPPMS-CrAlN-coatings for the use in dry cold forging processes of steel
(Applicants
Bobzin, Kirsten
;
Klocke, Fritz
)
-
Surface coating for non-lubricated deep drawing of stainless steel
(Applicant
Seefeld, Thomas
)
-
Tribosystems for cold forming processes based on volatile lubricants and laser structured surfaces
(Applicants
Graf, Thomas
;
Hirth, Thomas
;
Liewald, Mathias
)
-
Tribosystems for cold forming processes based on volatile lubricants and laser structured surfaces
(Applicants
Graf, Thomas
;
Liewald, Mathias
;
Tovar, Günter
)