Explore chapters and articles related to this topic
Environmentally led strategies
Published in Jane Penty, Product Design and Sustainability, 2019
Choosing the most appropriate tools will depend on the nature of the product, the quantities being produced and the capability of the team. Generally, the higher the volume, the greater the consequences of design decisions and the greater the need for quantitative measurements.22 As designers gain in experience and knowledge, they are able to assess situations much more quickly and informally, but even with experience it is important to use quantitative tools to check these judgements. Independently assessed metrics are also increasingly necessary for companies to meet internal Key Performance Indicators (KPIs) and external regulations and certification requirements such as Environmental Product Declarations (EPDs) that we will cover in Chapter 2.4. It is worth reminding ourselves however that tools should remain just that: help in delivering a vision rather than becoming goals in themselves.
Annotated Dictionary of Construction Safety and Health
Published in Charles D. Reese, James V. Edison, Annotated Dictionary of Construction Safety and Health, 2018
Charles D. Reese, James V. Edison
Electric tools present several dangers to the user; the most serious is the possibility of electrocution (see Figure 79). Only assigned, qualified operators shall operate power, powder-actuated, or air driven tools. The following safe work procedures should be implemented and enforced at all company construction projects. Tools must have either a three-wire cord with ground and be grounded, double insulated, or powered by a low-voltage isolation transformer. A Ground-Fault Circuit Interrupter (GFCI) must be used, or the tool must be double-insulated to prevent the worker from electrical shock hazards.Never remove the third prong from the plug.Electric tools should be operated within their design limitations.Gloves and safety footwear are recommended during use of electric tools.When not in use, tools should be stored in a dry place.Electric tools should not be used in damp or wet locations.Work areas should be well lighted.
Tools
Published in Gerhard Plenert, Driving the Enterprise to Sustainable Excellence, 2021
The definition of a tool is, “A single device or item that accomplishes a specific task.” As mentioned previously, there are over 100 “tools” available, and each has a specific purpose. But as we learned in the last chapter, there are two tools that are foundational and are critical to be applied before all others. We are restating what has been expressed previously in this chapter in order to add emphasis. These two tools are: 5SStandard Work
Individualized summative assessments as used during COVID-19
Published in International Journal of Mathematical Education in Science and Technology, 2022
The key feature of our system is to completely decouple the generation of questions, the delivery to students, and marking, and feedback (see Figure 1). By decoupling, we allow flexibility for an instructor to deliver the assessment that they deem appropriate for their students (within the proviso that it be an online assessment) using tools that they are familiar with. Within this overarching approach, in different assessments, we have used Microsoft Office, MATLAB, Bash scripts in a Linux environment, and the programming language Julia at the various stages. Such an approach was essential during COVID-19 teaching semesters in 2020 when there was insufficient time to train in a new language or software approach. The best tool for a job is the one that you can use most effectively.
Development and machinability evaluation of MgO doped Y-ZTA ceramic inserts for high-speed machining of steel
Published in Machining Science and Technology, 2018
Bipin Kumar Singh, Himadri Roy, Biswanath Mondal, Shibendu Sekhar Roy, Nilrudra Mandal
In recent manufacturing areas, new technologies are constantly replacing the conventional systems due to high demand and low cost of production. The area of machining science and technology also demands advent of newer materials at the forefront of research, which would lead to increase in productivity. The major factor on which selection of tool depends upon is the type of material to be machined and the type of operation. The additional factors that affect the selections of tools are machine capacity, i.e., tool horsepower, availability of inserts, speed range, rigidity of the machine, tooling budget limitations, productivity demands, machine tool burden rate, etc. Ceramic cutting tools have shown great potential in the manufacturing sector as they fit in all the above-mentioned criteria quite well. Among the various available ceramic tools, Al2O3-based ceramics are widely used in aerospace, manufacturing and automobile industries due to its excellent stability, oxidation resistance, low density, low thermal coefficient, high strength at elevated temperature and less wear (Miles and Feltham, 1971; Wang and Stevens, 1989; Kumar et al., 2007). However, low toughness and high brittleness restrict the use of alumina ceramics in structural applications. But, a class of Al2O3 ceramics, i.e., zirconia-toughened alumina (ZTA) shows considerable improvement in strength and toughness over standard alpha alumina. In this ceramics, alumina provides high strength and hardness, whereas tetragonal zirconia favors a toughening effect. In 1970, Garvie et al. (1975) demonstrated a peculiar characteristic of zirconia i.e. transformation toughening which enables it to use in various applications due to enhancement in mechanical properties. Thereafter, many researchers worked in this field to increase the toughness of ceramics. Few other researchers (Xu et al., 1996; Kelly and Denry, 2008) observed that the crystal structure of pure zirconia changes from monoclinic (at room temperature) to tetragonal (around 1,700°C) to cubic (at around 2,370°C). It is notable that during the transformation of tetragonal (t) to monoclinic (m) in cooling, there is an expansion in the volume (approximately 4.5%) (Nevarez-Rascon et al., 2009), sufficient to prevent catastrophic failure (Ramzan et al., 2011).