introduction: metalworking fluids (mwfs) are widely used in metal working operations for cooling down, lubricating and reducing the friction between tools and work pieces which result in controlling the heat produced. exposure to mwfs causes several adverse effects including respiratory problems, skin diseases, cancer and even infertility. this study examines workers’ exposure to mwf mist and t...

Abstract Due to an excellent ratio of high strength and low density, Ti-6Al-4V is suitable for many industrial applications, especially in the aerospace industry. However, also characterized by a very thermal conductivity chemical reactivity which why titanium alloy considered be hard-to-cut material. Machining leads cutting temperatures, rapidly progressing thermo-chemical induced tool wear. T...

We report the analysis of glass vessels recovered from 1st millennium BC contexts at the site of Gordion, the ancient capital of the Anatolian Kingdom of Phrygia (in modern day Turkey). The Phrygians (c.8 th -7 th century BC) were renowned for their metalworking skills and produced vessels in a distinctive “Phrygian” style. While no archaeological evidence has yet been found to support local gl...

BACKGROUND The aim of the study was to answer the question of whether earplugs provide sufficient protection in the exposure to impulse noise generated during metalworking processes. MATERIAL AND METHODS The noise generated by die forging hammer and punching machine was characterized. Using an acoustic test fixture, noise parameters (LCpeak, LAmax) under 24 earplugs, foam, winged and no-roll,...

BACKGROUND Awareness about lead poisoning in South Korea has increased; however, occupational exposures occurring in small-scale businesses have not been thoroughly investigated. We report two cases of high lead exposure in a leaded bronze ingot foundry. CASE PRESENTATION Two employees, a 54-year-old primary operator and a 46-year-old assistant, at a small-scale metalworking company who had b...

The increasing competitiveness in manufacturing industry is forcing manufacturers to seek effective processing schedules. The paper presents an optimization manufacture scheduling approach for dependent details processing with given processing sequences and times on multiple machines. By defining decision variables as start and end moments of details processing it is possible to use straightfor...

1. Wilkinson SM. Hypersensitivity to topical and systemic corticosteroids: a review. Clin Exp Dermatol. 1994;19: 1--11. 2. Baeck M, Marot L, Nicolas JF, Pilette C, Tennstedt D, Goossens A. Allergic hypersensitivity to topical and systemic corticosteroids: a review. Allergy. 2009;64: 978--94. 3. Matura M, Goossens A. Contact allergy to corticosteroids. Allergy. 2000;55:698--704. 4. Soria A, Baec...