The significance of maturity models application in manufacturing towards adaptation of Industry 4.0 : a review
- Authors: Mazibuko, Meshack , Tartibu, Lagouge , Mutyavavire, Robert , Mashamba, Able
- Date: 2020
- Subjects: Industry 4.0 , Maturity models , Decision-making
- Language: English
- Type: Conference proceedings
- Identifier: http://hdl.handle.net/10210/459996 , uj:40917 , Citation: Mazibuko, M. & Tartibu, L. 2020. The significance of maturity models application in manufacturing towards adaptation of Industry 4.0 : a review.
- Description: Abstract: Industry 4.0 comes with complexities that require new business strategies to be developed and deployed, not only at a technological level but also across the entire value chain. The main focus of Industry 4.0 is to connect every aspect of the value chain holistically with the goal of promoting flexibility and agility for better response to internal and external matters of the business as well as to changing customer demands. Contemporary business strategies and their rigid business hierarchies will be defied by Industry 4.0. For manufacturing entities to remain abreast of the dynamics of the latter, they will be forced to perform introspection on their current business operations, especially if they still desire to remain relevant to current and future customer requirements. The implementation of Industry 4.0 and its scope is highly dependent on the entity’s capabilities, thus assessing the current state of the company is critical for its survival. Prior to transforming and transitioning contemporary manufacturing companies towards Industry 4.0, each company should first assess its present state before leapfrogging to its desired future state capabilities. The application of maturity models can assist companies in this regard. Maturity models as tools of assessment play a vital role in helping companies in assessing their status quo and determining their own competitive path in the market rather than assuming that they are better prepared for anything. Thus as most companies are preparing and planning for transitioning towards Industry 4.0, the use of maturity models can enrich their decision-making process. This paper highlights the significance of utilizing maturity models as a tool of assessment in preparation for Industry 4.0.
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Study of the mechanical behavior of LM20 alloy at various temperatures processed by die-casting
- Authors: Avvari, Muralidhar , Mashamba, Able
- Date: 2016
- Subjects: LM20 , Die-casting , Microstructures
- Language: English
- Type: Conference proceedings
- Identifier: http://hdl.handle.net/10210/93347 , uj:20336 , Citation: Avvari, M. & Mashamba, A. 2016. Study of the mechanical behavior of LM20 alloy at various temperatures processed by die-casting.
- Description: Abstract: Nowadays in the current domain, manufacturing industries are competing to reduce the cost and fuel consumption rates. Especially, in automobile and aerospace applications because of the improvement of lightweight metal advantages. Magnesium, aluminum and other few materials are considered as lightweight materials to use in required applications due to their inherent properties. Therefore, in this paper tried to characterize the advances of LM20 aluminum alloy rods by using the die-casting processes at various processing temperatures followed by room temperature, 373 K, and 473 K. The main aim is to study the effect of various processing temperature on microstructures and mechanical properties of LM20 alloy. Also, this paper reveals the stability of the microstructures of LM20 aluminum alloy though the processing temperature has been increased. The tensile strength, hardness of the LM20 aluminum alloy was decreased with increase in processing temperature. Similarly, the wear, and surface roughness tests were performed on the LM20 alloy rods to understand the effect at various processing temperature.
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Recent developments in laser cutting of metallic materials
- Authors: Anghel, Cristina , Gupta, Kapil , Mashamba, Able , Tien-Chen, Jen
- Date: 2018
- Subjects: Heat affected zone , Kerf width , Laser cutting
- Language: English
- Type: Conference proceedings
- Identifier: http://hdl.handle.net/10210/288767 , uj:31314 , Citation: Anghel, C. et al. 2018. Recent developments in laser cutting of metallic materials.
- Description: Abstract: Laser cutting has become an extensively used method of material removal with cost effective solutions for complex manufacturing processes. Consequently, the process has become an area of intense research and development activity where researchers and industry experts are focusing on maximizing the productivity and reducing the cost while maintaining a high quality. Laser cutting, as the prevalent application of laser beam machining (LBM), offers a competitive advantage over conventional cutting processes in terms of material savings due to narrow kerf width, less heat affected zone and minimum distortions. The process offers high precision and good surface quality, with no tool wear and easy automation. The current paper aims to present an overview on the recent research on laser cutting of metallic materials, in terms of process monitoring and control as well as modeling and optimization, and to summarize the past five years of research on the topic.
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Equipment maintenance challenges and solutions for capacity building and sustainability in the training of engineers : the case for the University of Zimbabwe
- Authors: Nyemba, Wilson R. , Mashamba, Able , Mbohwa, Charles
- Date: 2016
- Subjects: Industrial capacity , Engineering equipment - Maintenance and repair , Engineers - Training of - Zimbabwe
- Language: English
- Type: Conference proceedings
- Identifier: http://hdl.handle.net/10210/223373 , uj:22459 , Citation: Nyemba, W.R., Mashamba, A. & Mbohwa, C. 2016. Equipment maintenance challenges and solutions for capacity building and sustainability in the training of engineers : the case for the University of Zimbabwe. International Conference on Sustainable Materials Processing and Manufacturing, SMPM 2017, 23-25 January 2017, Kruger National Park. , ISSN: 2351-9789
- Description: Abstract: Engineering equipment in some Higher Education Institutions (HEIs) in Sub-Saharan Africa is underutilized, obsolete or in poor working condition owing to lack of expertise, aging or maintenance-related challenges respectively. A research initiated by the Network of Users of Scientific Equipment in Eastern and Southern Africa (NUSESA) and funded by the Swedish International Development Cooperation Agency (Sida) was carried out by 4 faculties of engineering in Southern Africa to establish common challenges, their causes and to propose solutions. The study revealed that the faculties shared similar problems such as no proper maintenance documentation, no local suppliers for spares and inadequate expertise. The importation of spares usually leads to prolonged lead times and delays in timely repairs to malfunctioning equipment and thus obsolescence. This paper proposes smart procurement partnerships between industry and HEIs, based on the findings from the University of Zimbabwe (UZ). Following the survey and analysis of data obtained, recommendations were made and implemented and have assisted in building capacity in acquisition, maintenance and management of laboratory equipment and sustaining these in the training of engineers.
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