Author
M. Petzel
Bio: M. Petzel is an academic researcher from Otto-von-Guericke University Magdeburg. The author has contributed to research in topics: Dry-ice blasting & Machining. The author has an hindex of 3, co-authored 3 publications receiving 102 citations.
Topics: Dry-ice blasting, Machining
Papers
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TL;DR: In this paper, the authors present the recent developments of HEFJet-Mach from various perspectives: machine/system designs; modelling of both jet plumes and their interactions with the target surfaces; part quality including material integrity; supervision and control of the process; key aspects of machine maintenance and health and safety.
86 citations
TL;DR: In this article, frozen and deeply chilled water-ice particles, with a temperature of around −100°C, act as a blasting abrasive for accelerating cryogenic ice particles.
22 citations
01 Jan 2010
TL;DR: In this paper, an operational alternative for particle blasting with deep frozen ice, an in this form solid and hard blast medium, is presented, especially in less accessible locations on complex components.
Abstract: The paper describes the development of an operational alternative for particle blasting with deep frozen ice, an in this form solid and hard blast medium. Primarily the practical realization of this processing step for the above described case is presented, especially in less accessible locations on complex components. The procedure investigated in this article is essentially a blasting procedure using a solid blast medium. The innovative idea lies in the use of ordinary ice as a blast medium. The advantage of ice is its property not to leave any solid residue behind. Consequently it is applicable to the blasting treatment of complex component geometries. The use of conventional blast media for purposes of blast deburring entails the subsequent removal of blast medium residue. In the case of complex component geometries, complete removal of said residue is not feasible. The objective is to create the potential to implement the above-described procedure of blasting by use of deep-frozen ice. This requires a new form of equipment which allows for specialized fabrication of suitable ice. The ice blasting procedure examined here must not be confused with dry ice blasting, which uses frozen carbon dioxide CO2 as a blast medium.
12 citations
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TL;DR: An overview of major cryogenic manufacturing processes, summarizing the state-of-the-art and significant developments during the last few decades, is presented in this article, with a summary of historic perspectives, including definitions, scope, and analysis of process mechanics and material performance covering tribological and thermo-mechanical interactions.
Abstract: Cryogenically assisted manufacturing processes are emerging as environmentally-benign, toxic-free, hazardless operations, producing functionally superior products. This paper presents an overview of major cryogenic manufacturing processes, summarizing the state-of-the-art and significant developments during the last few decades. It begins with a summary of historic perspectives, including definitions, scope, and proceeds to analysis of process mechanics and material performance covering tribological and thermo-mechanical interactions, followed by surface integrity, product quality and performance in cryogenic manufacturing. Process analysis and applications includes machining, forming and grinding. Economic, safety and health issues are then discussed. Finally, progress in developing predictive performance models and future outlook are presented.
306 citations
TL;DR: Abrasive fine-finishing technology is often applied as a final finishing process, and the selection of the right technology is crucial to obtaining the desired performance of functions such as fatigue life.
Abstract: Abrasive fine-finishing technology is often applied as a final finishing process, and the selection of the right technology is crucial to obtaining the desired performance of functions such as fatigue life. This paper begins with classifications of the technology along with fundamentals and brief histories of the individual methods. The material removal mechanisms, specific energies, and finishing characteristics of the various technologies are summarized giving assessments of the surfaces created by them. Guidelines developed for selecting the appropriate methods, and case studies illustrate the effectiveness of various methods. This paper ends with a discussion of the future prospects of the technology. (C) 2016
163 citations
TL;DR: In this article, the machinability of nickel-based superalloys using abrasive water jet machining process was investigated. And the machining studies were carried out with three different parameters such as water jet pressure, traverse speed of jet nozzle and standoff distance at three different levels.
Abstract: This paper deals with the machinability of nickel-based superalloys using abrasive water jet machining process. The machining studies were carried out with three different parameters such as water jet pressure, traverse speed of jet nozzle, and standoff distance at three different levels. The performances of the process parameters are evaluated by measuring difference in kerf width, kerf wall inclination, and material removal rate (MRR). Further, the surface morphology and material removal mechanisms are analyzed through scanning electron microscope (SEM) images. It is found that water jet pressure is the most influencing factor related to surface morphology and surface quality.
106 citations
TL;DR: Abrasive jet machining (AJM) is a manufacturing technology based on erosion localization and intensification as discussed by the authors, which has a progressively important influence on the machining technology market.
Abstract: Abrasive jet machining (AJM) is a manufacturing technology based on erosion localization and intensification AJM has a progressively important influence on the machining technology market Over the past 20 years, there has been an exponential growth in the number of papers that discuss AJM Various innovations and process developments such as intermittent, submerged, thermally assisted and other jet conditions were proposed This paper examines AJM’s technological advantages and the variety of machining operations in different industries where AJM is utilized Particular attention is devoted to the micro-texturing capabilities of powder blasting and its application in tribology New evidence of ductile and brittle material removal mechanisms are reviewed together with recently discovered elastic removal mode The effects of hydraulic, abrasive and machining parameters on particles kinetic energy, machined surface roughness and footprint size are described in detail Nozzle wear has a strong dependence on nozzle materials, its geometry, particles size, hardness, and flow rate The trend of AJM development is a shift from macro to micro scale Improvements in micro-machining resolution, process controlling and erosion prediction are current challenges facing AJM
92 citations
TL;DR: In this article, the authors present an overview of research on sustainability of abrasive processes, which includes environmental, social, and economic sustainability in accordance with the definition proposed in the Brundtland Report of the United Nations.
Abstract: This paper presents an overview of research on sustainability of abrasive processes. It incorporates results from a round robin study on “energy-efficiency of abrasive processes” which has been carried out within the scientific technical committee “abrasive processes” (STC G) of CIRP, the content of technical presentations in STC G, and the results of a comprehensive literature study. The approach to sustainability includes environmental, social, and economic sustainability in accordance with the definition proposed in the Brundtland Report of the United Nations [156] . The main focus is on environmental and social sustainability. Economic sustainability will be considered as manufacturing productivity.
89 citations