Weight reduction in an AA2017 aluminum alloy part through the gas forming process of a blank with a variable thickness

Joining technologies are very important aspects of the production process in the automotive industry. This also applies to newly developed types of materials (e.g. ultra high-strength steels or aluminium alloys), where riveting or adhesive bonding technologies are used in addition to standard technologies such as welding. With regard to riveting technology, the correct setup of riveting parameters highly influences the resulting properties of the produced joints. Therefore, the aim of this article is to evaluate the effect of the riveting force on the final quality of the riveted joint in the case of aluminium alloy EN AW-6016 (thickness 2 mm). The evaluation of the riveted joint is carried out through selected tests. These include a shear test, a hardness test HV01 and a deformation analysis using non-contact optical scanning (ATOS III Triple Scan system). Riveting Aluminium Alloy Shear Test Hardness Digitalization

Section: Introductionmentioning

confidence: 99%

Evaluation of Riveting Force Influence on the Quality of Riveted Joint of Aluminium Alloy EN AW - 6016

Bradáč¹,

Sobotka²

2023

“…Achieving this aim is not so easy. Roughness is the most industrially used indicator to describe surface quality; however, it is not enough to perform evaluations on workpiece performances [4]. Therefore, it is needed to add an indicator of surface geometrical deviation, such as flatness and orientation.…”

Section: Introductionmentioning

confidence: 99%

Model of geometric deviations in milling with three error sources

Corrado¹,

Polini²

2021

Self Cite

The milling process is widely used industrially and the quality of the obtained milled products should be controlled because it affects their performance in exercise. This work correlates the quality of the machined surfaces with the adopted locating system, the shape deviations of the workpiece datum and the machine tool. In other terms three error sources of machined surfaces were taken into account in the proposed method. An analytical model was set up and implemented through Matlab ® to simulate the quality effects of a milling process. It was applied to two face milling processes characterized by two different locator configurations. It was proved that machine tool volumetric error influences the flatness of the milled surface, while the locator configuration and the datum form deviation affect the orientation of the milled surface, as should be actually.

Cold Blow Forming of a Thin Sheet in AA8006 Aluminum Alloy

Giuliano¹,

Parodo²,

Polini³

et al. 2023

Thin sheets of aluminum alloys are widely used for the packaging of pharmaceutical and cosmetic products and in the food industry; however, they present critical issues during the forming process. The blow forming process, which is widely used in the glass and plastics industries and for the hot forming of metal sheets, allows solving the problems related to the lubrication and the small tolerance ranges of the tools required by the well-known deep drawing process to form a thin sheet. In this work, the blow forming process is proposed for the first time to cold form thin metal sheets. Its advantage is connected with the use of equipment with a simple shape and, therefore, less expensive. Specifically, this work evaluates the time needed to form a simplified part; this is a critical aspect to apply this forming process to the food packaging industry. Moreover, this process represents the first step to developing a methodology for evaluating the constitutive equation of thin sheets as an alternative to tensile test that has some critical issues connected with specimens' manufacturing and test carrying out.