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Finite Element Analysis of Serrated Chip Formation in Machining of 7075-T651 Aluminum Alloy
By W. Jomaa, V. Songmene, O. Mechri, Laval Université, P. Bocher, J. Levesque
"A 2D finite element modelling (FEM), based on pure Lagrangian approach, is developed for studying the serrated chip formation during high speed machining (HSM) of 7075-T651 alloy. The solution was ac
Jan 1, 2016
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Process Improvements at Falconbridge Dominicana
By D. Ortiz, J. R. Frias, E. D. Mast, J. J. Fañas
Falconbridge Dominicana (Falcondo) has operated an integrated tpy nickel laterite mine and ferro-nickel processing plant since 1972 in the Dominican Republic. The operation includes mining, a processi
Jan 1, 2005
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The Use of Geotechnical Instrumentation to Optimise an Engineered Mine Design at Beaconsfield Gold Mine, Tasmania
By P B. Hills, R J. Walton
Geotechnical instrumentation has been implemented as a key step for monitoring and optimising an engineered mine design for managing seismicity at the Beaconsfield Gold Mine. Measurements of displacem
Jan 1, 2008
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What is the Future for Magnetite Projects in Australia and Why Have Some of the New Projects Been So Problematic?
By D Connelly
Magnetite orebodies generally means mining lower grade iron ores, crushing and grinding with significant energy costs in processing and the capital costs being significantly higher than for direct shi
Jul 13, 2015
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The Potential Role of Particle Characteristics on Coal Mine Respirable Dust Standards
By R. L. Grayson
"Compliance standards for respirable dust, which are reduced because of high quart: concentrations, have become an industry-wide problem. Research on the physical and chemical character of quart-class
Mar 1, 1992
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OFR-131-80 Interactive Mine-Power-System Analysis - APL Fault Program
By Frederick C. Trutt
A guide to the development and utilization of an interactive mine-power-system fault program (Z-bus by algorithm) is presented. Theoretical foundations, as well as implementation considerations are di
Jan 1, 1979
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Thermodynamic Evaluation Of Arsenic And Antimony On The Bessemer Matte And Calcium Ferrite Slag
By Jonkion M. Font
Due to the known disadvantages of the use of iron silicate slag in the nickel converting stage, i.e., high metal losses, high magnetite content, and low fixation of impurities in the slag, the develop
Jan 1, 2003
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A Computer Program For Solving Complex Auxiliary Ventilation Systems
By F. Calizaya
This paper explains and discusses a computer program developed to determine the ventilation design parameters for complex auxiliary ventilation systems such as those found in the construction of long
Jan 1, 1994
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Musculoskeletal Disorder Risk in the Upper Extremities of Mobile Mining Equipment Operators Exposed to Hand‑Transmitted Vibrations in Underground Metal Mines: a Case–Control Study
By M. Govinda Raj, S. Sridhar, M. Aruna
Hand-transmitted vibration (HTV) exposure is associated with various health risks for operators of mobile mining equipment (MME). The case–control research was conducted to determine the musculoskelet
Aug 2, 2022
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RI 4174 Tungsten Deposits in Alaska
By Wilford S. Wright, Harold E. Heide, Robert L. Thorne, Neal M. Muir, Aner W. Erickson, Bruce I. Thomas
A program of investigation of strategic and critical minerals began in 1940 to examine and develop tungsten occurrences in the western United States and Alaska. During the years in which the nation wa
Jun 1, 1948
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In Situ Bioremediation Of A Heavily Contaminated Soil In A Uranium Deposit
By Stoyan Groudev
Two experimental plots consisting of a slightly acidic soil heavily contaminated with radionuclides (mainly uranium and radium) and non-ferrous metals (mainly copper, zinc, and cadmium) were treated i
Sep 1, 2012
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Translators’ Preface
THERE are three objectives in translation of works of this character : to give a faithful, literal translation of the author's statements ; to give these in a manner which will interest the reade
Jan 1, 1950
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The Discovery, Evaluation And Development Of Gold Occurrences At The Dome Mine, South Porcupine, Ontario - A Working Model For Archean-Type Deposits (7c07f7ef-a02a-49ca-85f9-92f9b8e390e0)
By Dean S. Rogers
The conventional role of exploration, development and grade control is examined in this paper within the context of the many and varied types of gold occurrences which are found at the Dome Nine. The
Jan 1, 1984
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Recovery of Valuable Metals from Lead Flue Dust by a Intergrated Process
By Chao Li, Lim Hongxu, Yuyue Wang, Xie Yang
"A intergrated process of sulfuric acid leaching, sodium chloride leaching, lead chloride crystallization, lead hydroxide synthesis and roasting was carried out for the recovery of lead, cadmium, copp
Jan 1, 2014
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Grade Control in Underground Gold Vein Operations - The Role of Geological Mapping and Sampling
By J B. Collier, R M. Fraser, O Dahl, I M. Platten
Grade control is a process of maximising value and reducing risk, through the delivery of quality tonnes to the mill via the accurate definition of ore and waste. It essentially comprises data collect
Jan 1, 2009
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Ventilation and refrigeration practices together with environmental thermal problems at the Mindola Mine, Zambia
By Mehmet Guney
This article is based on a detailed heat investigation conducted at the Rokana Division of Nchanga Consolidated Copper Mines Limited while both authors were employed in Zambia. Mindola Mine is one of
Jan 1, 1979
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Augered Cast-In-Place Piles Quality Control
By Rudolph P. Frizzi
The current trend of increasing augered cast-in-place (ACIP) pile diameter, length, and load carrying capacities demonstrates improvements in installation equipment, increased acceptance, and that qua
Jan 1, 2001
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State-of-the-Art Room-and-Pillar Retreat Mining in the Kittanning Coalbed
By Alan A. Campoli
The US Bureau of Mines (USBM) conducted research to develop improved guidelines for selecting the type and pattern of roof support in different geologic environments. The goal is to minimize the over
Jan 1, 1996
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Twenty-fifth Regular Meeting August 29,30 and 31 1927 Trinidad, Colorado - "Coal Geology"
By J. Q. McNatt
Mr. President and Members of the Rocky Mountain Coal Mining Institute: It is a great pleasure to be with you at this meeting, to enjoy the entertainments, and the good fellowship of all present., as
Jan 1, 1927
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The Cerro Verde 2 Concentrator: Design, Start Up and Operation
By P. Gelfi, J. Vanderbeek, J. Enriquez
"The Cerro Verde copper-molybdenum mining complex is located near Arequipa, Peru. A 108,000 t/d copper concentrator (C1 concentrator) commenced operation in late 2006 and was debottlenecked to a 120,0
Jan 1, 2017