Parallel High Speed Machining with a New Additional HSC Spindle for Machine Tools

Harpaz, O.; Books, B.; Schwaar, M.; Schubert, Andreas; Eckert, U.

doi:10.1016/j.procir.2012.05.022

Cited by 5 publications

(4 citation statements)

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“…Fraunhofer IWU in Chemnitz has ample experience in designing, developing and testing of mobile machine tools, and more specifically regarding parallel kinematic (PK) machines as shown in Figure 9. The research has been conducted on mobile machine tools that are relatively small compared to the workpiece [53][54][55][56][57][58]. The machine design allows for milling, drilling and similar operations in various directions and positions.…”

Section: Application Structure and Features Of A Mobile Machine Tool As Demonstratormentioning

confidence: 99%

Bio-based design methodologies for products, processes, machine tools and production systems

Houten

Wertheim

Ayali

et al. 2021

CIRP Journal of Manufacturing Science and Technology

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The paper explores and presents results of an investigation handling design methodologies using the bio-space and biological phenomena combined with the technical space for the development, design and application of products, machine tools, processes and manufacturing systems carried out by a multinational team including Fraunhofer and CIRP fellows. The main biological approach for designing was bio-inspiration. However, links and examples implementing bio-integration and bio-intelligence were also considered and analyzed during the investigation.The paper describes a systematic design procedure starting from requirements and applications related to manufacturing, using well-known theories and experience in engineering, however analyzing and applying biological materials, properties, structures, phenomena and complete systems. Sustainability aspects combined with the immense and ever growing capacity of ICT and digitization possibilities provided new options for design methodologies.A moveable and flexible machine tool was virtually used as a demonstrator to describe the new methodology. It was proved that the o ngoing process of learning from nature and applying biological phenomena, structures and materials, together with new technologies such as Additive Manufacturing (AM) can develop new ideas, processes, manufacturing systems, and products with benefits to performance, productivity, efficiency and sustainability. Nature and biological domains can be integrated, can inspire, be implemented or even applied as an intelligent system in the design procedure.

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Section: Application Structure and Features Of A Mobile Machine Tool As Demonstratormentioning

confidence: 99%

Bio-based design methodologies for products, processes, machine tools and production systems

Houten

Wertheim

Ayali

et al. 2021

CIRP Journal of Manufacturing Science and Technology

Self Cite

View full text Add to dashboard Cite

show abstract

“…9. The research has been conducted on mobile machine tools that are relatively small compared to the workpiece [53][54][55][56][57][58]. The machine design allows for milling, drilling and similar operations in various directions and positions.…”

Section: Application Structure and Features Of A Mobile Machine Tool ...mentioning

confidence: 99%

Reprint of: Bio-based design methodologies for products, processes, machine tools and production systems

Houten

Wertheim

Ayali

et al. 2021

CIRP Journal of Manufacturing Science and Technology

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“…Additionally, the tool geometry should ensure proper formation of chips and facilitate their removal from the cutting zone [1,21]. Modern CNC machine tools designed for HSC are equipped with high-speed electro-spindles, usually with hybrid bearings and linear drives of the feed axes with accelerations of 1-2 g. Characteristic features of such machines are, for example: high stiff ness, high power (up to 60kW) and rotational spindle speed (even 60,000 rpm), increased values of working and setting feed rates, great accuracy of movements as well as CNC control allowing to calculate displacements in advance (the look-ahead function -loads and analyses the NC code in advance of 150-200 blocks) as well as enabling designing a correct tool path [22][23][24][25]. A characteristic feature of High Performance Cutting is an increased volume of removed material per time unit during the cutting.…”

Section: Introductionmentioning

confidence: 99%

High-Performance Milling Techniques of Thin-Walled Elements

Zawada-Michałowska¹

2022

Adv. Sci. Technol. Res. J.

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The paper presents an overview of high-performance milling techniques of thin-walled elements. Currently, the tendency to simplify semi-fi nished products is used in aviation. In that case even 95% of semi-fi nished product mass is converted into chips, hence the increasing interest in such techniques as: High Performance Cutting (HPC) and High Speed Cutting (HSC). The aim of the paper was to research high-performance milling techniques of thin-walled elements in reference to conventional machining. The material was the EN AW-7075 T651 aluminium alloy. A thinwalled pocket structure was designed and manufactured. The aspects related to geometric accuracy, surface quality and cutting time were analysed. On the basis of the obtained results, it was found that in case of geometric accuracy associated with the wall deformation, the greatest deformation was obtained after HPC, while the smallest one after HSC. The diff erence was over 400% (comparing HPC to HSC). A similar relationship was also received for the quality of the machined surface. Analysing the cutting time, the best result was achieved after HPC in reference to HSC and conventional machining. Taking into account all analysed variables, prime solution was a combination of HPC and HSC. Thanks to the use of HSC as a fi nishing, it is possible to receive high geometric accuracy and quality of the machined surface, while the application of HPC for roughing allows to shorten the cutting time, translating into an increase in the effi ciency of the milling process. Conventional machining is slightly less advantageous in terms of geometric accuracy and surface quality and it could possibly be used alternatively with High Speed Cutting, but its weakness is signifi cantly lower effi ciency compared to high-performance machining.

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Parallel High Speed Machining with a New Additional HSC Spindle for Machine Tools

Cited by 5 publications

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Bio-based design methodologies for products, processes, machine tools and production systems

Bio-based design methodologies for products, processes, machine tools and production systems

Reprint of: Bio-based design methodologies for products, processes, machine tools and production systems

High-Performance Milling Techniques of Thin-Walled Elements

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