Results 11 to 20 of about 19,785 (237)
Rapid casting and new technologies in investment casting
Ingeniería e Investigación, 2006 Rapid prototyping is a manufacturing process which is different to traditional methods as material is not removed or formed but added to obtain the designed pieces.
Claudia Marcela Sánchez R +1 more
doaj +2 more sources
Investment casting of gold jewellery [PDF]
Gold Bulletin, 1986 Porosity is one of the important causes for the rejection of jewellery items cast by the lost wax process. If it is of the shrinkage type, then there is a considerable reservoir of knowledge, arising from experience in the casting of dental gold and other gold alloys, which can be drawn upon to overcome the problem.
Dieter Ott, Christoph J. Raub
openaire +2 more sources
Efficient runner networks for investment castings [PDF]
International Journal for Numerical Methods in Engineering, 2000 We present a computational method that finds an efficient runner network for an investment casting, once the gate locations have been established. The method seeks to minimize a cost function that is based on total network volume. The runner segments are restricted to lie in the space not occupied by the part itself.
Richard C. Givler, D.B. Saylors
openalex +4 more sources
Filling gaps in trustworthy development of AI [PDF]
Science (2021) Vol 374, Issue 6573, pp. 1327-1329, 2021 The range of application of artificial intelligence (AI) is vast, as is the potential for harm. Growing awareness of potential risks from AI systems has spurred action to address those risks, while eroding confidence in AI systems and the organizations that develop them.
arxiv +1 more source
Parametric Cost Modelling for Investment Casting [PDF]
, 2021 AbstractThis paper presents a parametric cost model for estimating the raw material cost of components realized employing the investment casting process. The model is built using sensitivity analysis and regression methods on data generated by an analytic cost model previously developed and validated by the same authors.
Mandolini M. +5 more
openaire +3 more sources
Modeling of TiAl Alloy Grating by Investment Casting
Metals, 2015 The investment casting of TiAl alloys has become the most promising cost-effective technique for manufacturing TiAl components. This study aimed to investigate a series of problems associated with the investment casting of TiAl alloys.
Yi Jia +4 more
doaj +1 more source
Interpreting the Caste-based Earning Gaps in the Indian Labour Market: Theil and Oaxaca Decomposition Analysis [PDF]
arXiv, 2021 The UN states that inequalities are determined along with income by other factors - gender, age, origin, ethnicity, disability, sexual orientation, class, and religion. India, since the ancient period, has socio-political stratification that induced socio-economic inequality and continued till now.
arxiv
AN ANALYTICAL COST MODEL FOR INVESTMENT CASTING [PDF]
Proceedings of the Design Society: DESIGN Conference, 2020 AbstractAnalytical cost estimation of investment casted products during design phase is a complex task since the quantity of parameters to be evaluated. So far, there is a short literature on such cost estimation models. This paper attempts to improve the cost model presented by Boothroyd and Dewhurst.
Mandolini M. +4 more
openaire +2 more sources
Investment Casting of AZ91 Magnesium Open-Cell Foams [PDF]
Archives of Foundry Engineering, 2023 The process of investment casting of AZ91 magnesium alloy open-cell porosity foams was analysed. A basic investment casting technique was modified to enable the manufacturing of magnesium foams of chosen porosities in a safe and effective way.
H. Kapłon, A. Dmitruk, K. Naplocha
doaj +1 more source
A deep real options policy for sequential service region design and timing [PDF]
arXiv, 2022 As various city agencies and mobility operators navigate toward innovative mobility solutions, there is a need for strategic flexibility in well-timed investment decisions in the design and timing of mobility service regions, i.e. cast as "real options" (RO). This problem becomes increasingly challenging with multiple interacting RO in such investments.
arxiv