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Document ID (ISN)106508
CIS number 07-704
ISSN - Serial title 1120-2971 - Prevenzione oggi
Year 2005
Convention or series no.
Author(s) Pera F., Borzelli E., Cortis L., Ratti C., Rossi L.
Title The capacity of curtains made from flexible material to contain tool pieces ejected at high speed
Original title Capacità delle barriere realizzate in materiale flessibile di trattenere parti di utensili proiettate ad alta velocità [in Italian]
Bibliographic information Apr.-June 2005, Vol.1, No.2, p.39-57. Illus. 4 ref.
Abstract Numerically-controlled boring and routing machines are equipped with flexible curtains to protect workers from the ejection of tool pieces. These types of machines should comply with the EN 848-3 standard which specifies the requirements that apply to these curtains. This project was undertaken to evaluate the efficiency of these curtains, to study their behaviour and to develop a test method for evaluating their capacity to retain tool pieces ejected at high speeds. It was found that, when used properly, curtains made from flexible thermoplastic materials can contain objects weighing up to 20g ejected at speeds of 70m/s. This study also enabled the formulation of several proposals for the revision of the EN 848-3 standard.
Descriptors (primary) safety devices; protection against ejected objects; woodworking machines
Descriptors (secondary) routers; milling machines; kickback of workpiece; impact testing; comment on standard
Document type D - Periodical articles
Country / State or ProvinceItaly
Subject(s) Machinery and tools
Broad subject area(s) Mechanical hazards, transport
Browse category(ies) Safety devices