Drawability of thin magnetron sputtered Al–Zr foils in micro deep drawing

Behrens, Gerrit; Kovac, Julien; Köhler, Bernd; Vollertsen, Frank; Stock, H.‐R.

doi:10.1016/s1003-6326(12)61718-x

Cited by 13 publications

(5 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The drawability of both a monometallic Al-Sc-Zr foil and a bimetallic Al-Sc-Zr / stainless steel foil produced by HiPIMS were compared in micro deep drawing experiments. Both foils have shown a higher limit drawing ratios than DCMS Al-Zr foils which were previously produced [18]. However, in case of the monometallic foil, different limiting drawing ratios were determined according to the side of the foil (free surface or substrate) facing toward the deep drawing die, which was attributed to surface porosity.…”

Section: Discussionmentioning

confidence: 87%

“…Their microstructure consisted of a nearly precipitate free oversaturated aluminum solid solution which could be hardened by heat treatment after deep drawing [17]. The limit drawing ratio of these foils was 1.7, which is comparable to conventional pure aluminum foils [18]. This was less than other materials like copper or stainless steel, which drawability is higher.…”

Section: Introductionmentioning

confidence: 94%

See 1 more Smart Citation

Tensile properties and drawability of thin bimetallic aluminum-scandium-zirconium / stainless steel foils and monometallic Al-Sc-Zr fabricated by magnetron sputtering

et al. 2018

Self Cite

View full text Add to dashboard Cite

Al-Sc-Zr alloys are interesting for the production of high strength micro components by micro deep drawing. These alloys show a good hardenability due to the formation of nanometer-scale spheroidal Al3(Sc, Zr) precipitates, which are highly coherent with the aluminum matrix. However, the formation of these precipitates in Al-Sc-Zr foils fabricated by conventional metallurgical methods dramatically reduces their ductility and drawability. In this work, magnetron sputtering was used to produce Al-Sc-Zr foils and Al-Sc-Zr / stainless steel bimetallic foils which are nearly free of these precipitates. Tensile tests were carried out to measure and compare the mechanical properties of monometallic Al-Sc-Zr foils and bimetallic Al-Sc-Zr / stainless steel foils deposited with varying plasma target powers and containing different volume fractions (layer thickness) of Al-Sc-Zr. Micro deep drawing was used to determine the drawability of selected monometallic and bimetallic foils. The results show that the density of monometallic Al-Sc-Zr foils can be improved significantly by increasing the DC target power and by using the high power impulse magnetron sputtering (HiPIMS) technology, resulting in foils with higher ductility. Bimetallic foils achieved higher strength and ductility than monometallic Al-Sc-Zr foils. Their mechanical properties vary with the target power and the volume fraction (thickness) of Al-Sc-Zr. The limit drawing ratio of HiPIMS deposited monometallic foil was 1.7 or 1.8 depending on the side of the foil facing the die, whereas a limit drawing ratio of 1.9 was observed for bimetallic foils.

show abstract

Section: Discussionmentioning

confidence: 87%

Section: Introductionmentioning

confidence: 94%

Tensile properties and drawability of thin bimetallic aluminum-scandium-zirconium / stainless steel foils and monometallic Al-Sc-Zr fabricated by magnetron sputtering

et al. 2018

Self Cite

View full text Add to dashboard Cite

show abstract

“…PVD Al-Sc and Al-Zr foils deposited at substrate temperatures of 37°C and 160°C were tested by deep drawing with a constant blank holder pressure of 1 N/mm 2 [Beh12]. For Al-Sc foils, the limiting drawing ratio (LDR) was always 1.6, independently of the substrate temperature.…”

Section: Results For Al-sc Al-zr and Al-sc-zr Thin Foils Produced Inmentioning

confidence: 99%

Materials for Micro Forming

Zoch

Schulz

Cui

et al. 2019

Lecture Notes in Production Engineering

Self Cite

View full text Add to dashboard Cite

In micro cold forming, the tools are loaded differently in various functional areas, and tailored material properties are therefore required. To meet this requirement, different tool steels can be applied in the specific regions of the tools, with a gradual material transition in between to ensure a good bonding. These kinds of composite material can be produced via two newly developed material manufacturing processes: co-spray forming and successive spray forming. The spray-formed materials have been hot formed to eliminate porosity and break up the carbide network. Moreover, a selective heat treatment based on middle frequency induction heating has been developed to simultaneously austenitize the tool steels at different temperatures since the different steels may require different heat treatment conditions. Finally, micro rotary swaging tools made of graded tool steels have been precisely machined in hardened condition due to the fine and homogeneous microstructure in the steels. The tools have been successfully applied to form wires of AISI 304 stainless steel.

show abstract

“…A limiting drawing ratio of 1.6 was achieved for both foils. Similar kinds of experiments were repeated 15 using Al-Zr alloy.…”

Section: Microformingmentioning

confidence: 99%

Micromanufacturing: A review—part II

Jain

Dixit

Paul

et al. 2014

Proceedings of the Institution of Mechanical Engineers, Part B:

View full text Add to dashboard Cite

This article discusses an overview of microforming, microcasting and microwelding processes. In the case of microforming, the processes reviewed are micro deep drawing, microforging, microextrusion, microrolling, microstamping, microhydroforming and incremental microforming. This section also throws some light on how the lasers have been used for microbending and micropunching purposes. The work done in the area of physics of microforming processes has also been discussed briefly. This article also deals with different types of microcasting processes particularly permanent mold and investment microcasting processes. The applications of these microcasting processes have been specified in different fields of engineering, biomedical and so on. Some areas in which further research work is needed have been identified. It includes both theoretical and experimental works which need attention. The last part of this article deals with microjoining in general and laser microjoining in particular. This section discusses the types of the lasers that are being used for microjoining purposes. The process parameters (laser, optics, system and material) have been explained, and some work done on the parametric analysis has been reported briefly. Various applications of laser microjoining have been elaborated before the last section on concluding remarks. This last section presents, in very brief, the areas in which further work is required in microjoining processes.

show abstract

Drawability of thin magnetron sputtered Al–Zr foils in micro deep drawing

Cited by 13 publications

References 11 publications

Tensile properties and drawability of thin bimetallic aluminum-scandium-zirconium / stainless steel foils and monometallic Al-Sc-Zr fabricated by magnetron sputtering

Tensile properties and drawability of thin bimetallic aluminum-scandium-zirconium / stainless steel foils and monometallic Al-Sc-Zr fabricated by magnetron sputtering

Materials for Micro Forming

Micromanufacturing: A review—part II

Contact Info

Product

Resources

About