Enes Sert

• Doctor of Engineering
• PostDoc Position at Hochschule Aalen

The low coefficient of thermal expansion of Invar 36 represents a significant consideration in light of its potential effects, particularly in industrial applications where thermal stability is of paramount importance. In light of this, a three-step heat treatment was employed, to reduce the thermal expansion coefficient, and enhance the thermal di...

The low coefficient of thermal expansion of Invar 36 represents a significant consideration in light of its potential effects, particularly in industrial applications where thermal stability is of paramount importance. In light of this, a three-step heat treatment was employed, to reduce the thermal expansion coefficient, and enhance the thermal di...

The use of additive manufacturing in industry and research rises consistently. As new applications for this manufacturing method emerge, their implementation requires material optimization for additive manufacturing. Through the use of TiC and TiB2 particle admixtures to different AlSi-alloys, possible improvements in density and moreover, static m...

The production of components using the powder bed fusion-laser based (PBF-LB) process opens up completely new possibilities in industry. Especially the geometry in freedom design shows clear advantages compared to conventional fabrication methods. Nevertheless, there are aspects that can cause a negative impact on the fatigue resistance behaviour o...

One research area of additive manufacturing is material development and property optimisation, being investigated in our study through static mechanical tests. The materials tested are Al-Si alloys with 8–16 wt.% Si, without any other alloying elements. Tensile strengths achieved for the different materials are between 263 and 411 MPa. For AlSi16,...

Series production of the future is facing the challenge of ever higher demands for individualised and complex products. Thus additive manufacturing is one of the key technologies to meet these demands. A major challenge in the selective laser sintering process is the reuse of the powder leftover after the building process as only 5–20% of the powde...

With the help of additive manufacturing, almost any geometry can be produced. Even those that are impossible or difficult to produce using conventional manufacturing techniques. Topology optimization offers the possibility of designing such geometries and thus also provides added technical value. Therefore, combining those two techniques allows the...

Additive manufacturing is one of the key technologies for the future production of complex and individualised components. One of the most challenging questions to minimize the production cost is the reuse of the powder leftover after the building process. This study investigates the influence on the mechanical properties when reusing the leftover p...

Relevance. In design and calculation of civil engineering structures, several standard commercial software packages, which are successfully applied to solve everyday engineering problems, are traditionally used. However, when it is necessary to design the models of complex shape shell structures with defining surfaces based on parametric equations,...

Hot isostatic pressing can be utilized to reduce the anisotropic mechanical properties of Al–Si–Mg alloys fabricated by laser powder-bed fusion (L-PBF). The implementation of post processing densification processes can open up new fields of application by meeting high quality requirements defined by aircraft and automotive industries. A gas pressur...

Laser powder bed fusion has become one of the major techniques within metal additive manufacturing, especially when delicate structures and high geometric accuracy are concerned. Lately, the awareness of the material-specific macroscopic anisotropy has risen and led to widespread investigations on the static mechanical strength. However, little is...

Laser powder-bed fusion has become one of the most important techniques in additive manufacturing. For guaranteeing the possibility of manufacturing highly specialized and advanced components, currently intensive research is carried out in this field. One area of this research is the material-specific macroscopic anisotropy, which is investigated i...

Additive manufacturing offers unique possibilities to produce complex components, which would not be possible or only very difficult to be realizable with conventional manufacturing processes. The potential of additive manufacturing of aluminum alloys has already been realized in prototyping, but still offers potential in the establishment of serie...

The industry's interest in additively manufactured components is steadily growing. Against the background of an increased understanding of the static characteristic values, the focus is now moving towards the dynamic strengths. Hence, the parameters influencing the service life and potential post-processing methods are investigated and analyzed. In...

Laser powder-bed fusion (LPBF) has significantly gained in importance and has become one of the major fabrication techniques within metal additive manufacturing. The fast cooling rates achieved in LPBF due to a relatively small melt pool on a much larger component or substrate, acting as heat sink, result in fine-grained microstructures and high ov...

Hafenstein, S.Hitzler, L.Sert, E.Öchsner, M.Merkel, M.Werner, E. isostatic pressing is commonly used to reduce the porosity of (sand-)cast age-hardenable Al-alloys in order to meet the high quality requirements defined by aircraft and automotive industries. In order to establish additive manufacturing methods, such as laser powder-bed fusion (L-PBF...

Selective laser melting is one of the powder bed-based processes that allows a layered fabrication of components, which has become the most widely utilized additive manufacturing technique for metal processing. The ability to create futuristic designs and non-standard topology-optimized structures is one of the biggest advantages of additive manufa...

Additive manufacturing of metals is a key technology and an emerging industrial sector enabling the manufacture of highly specialized and advanced components. It's outstanding advantages are the geometric flexibility and the elimination of tools compared to conventional manufacturing techniques. However, multiple directional dependencies lead to an...

Recent studies show that there are major variations in the mechanical properties of additively manufactured precipitation-hardenable AlSi10Mg samples. These variations are caused by the varying precipitation hardening condition which, in turn, can be attributed to dwell times varying at elevated temperatures. Another influence on the microstructure...