[en] A cutting tool is specially designed to open plutonium containers. It comprises two halves rotating together with three cutter wheels. CLearance is provided to prevent too much vibrations or stress when the container presents defects

No abstract available

[en] Minimising contaminated waste is a top priority in decommissioning projects in the nuclear sector. In the area of building decontamination, efficient processing of all affected concrete ceilings, walls and floors is essential and quickly results in a surface area of several thousand square metres to be processed. Decontamination is mainly carried out by using milling machines, e. g. rotary cultivators. Within the scope of a research project (BMWI, ZIM, funding code: KF2286004LL3) the project partners Karlsruher Institut fuer Technologie (KIT) and Contec Maschinenbau and Entwicklungstechnik GmbH (Alsdorf/Sieg) investigated the influence of the geometry of the cutting tools on concrete removal. This article shows results from the test program conducted at the Institute for Technology and Management in Construction (TMB) of the KIT, Department of Deconstruction of Conventional and Nuclear Structures.

[en] The fuel element on a support is perpendicular to the cut edge, it is maintained by clamps and between 2 cuttings it is advanced of the wanted length. The ends are cut with a cutter for ends and evacuated separately. The pencils are cut inside a cavity for containment and evacuated through an opening

No abstract available

No abstract available

[en] In micro and medium enterprises of Tofu, there is an activity that is done repeatedly and traditionally, namely the cutting process. The cutting process is done by using a kitchen knife so that it is not efficient and able to cause fatigue for the operator. Additionally, there is also the possibility of different cut sizes of tofu because the cutting is done without using a measurement tool. The operator just follows the mild flow on the tofu. The purpose of this study is to plan a manufacture of tofu cutting tools. This study used The Analytical Hierarchy Process method in which this method begins by conducting interviews regarding the choices in level 1, 2 and 3 actions to several respondents. The result from a variety of alternative solutions based on requirements specifications showed that the products of tofu cutters were selected with materials, such as pine wood, strings, handles, naples and naple bolts. This tool will produce tofu whose size is 52 x 52 cm2. The product design is carried out based on the specifications of materials and tools to produce a simple design so that the tofu cutter tool is easy to use and low cost. (paper)

[en] Apparatus for cutting through a tube bundle formed from closely packed tubes contained within a vessel, when made in accordance with this invention, comprises a base, a boom pivotally mounted with respect to the base to move in a plane transverse to the longitudinal axis of the tube bundle, a pair of cutters for cutting the tubes simultaneously at two places disposed on one end of the boom, and a device for moving the cutters toward and away from each other, whereby short segments of tubes can be cut from the tube bundle to cut the tube bundle free from the tubesheet. The apparatus is particularly useful in retubing nuclear steam generators

[en] Westinghouse capitalizes more than 30 years of experience in the cutting of internal components of reactor and their packaging in view of their storage. Westinghouse has developed and validated different methods for cutting: plasma torch cutting, high pressure abrasive water jet cutting, electric discharge cutting and mechanical cutting. A long feedback experience has enabled Westinghouse to list the pros and cons of each cutting technology. The plasma torch cutting is fast but rises dosimetry concerns linked to the control of the cuttings and the clarity of water. Abrasive water jet cutting requires the installation of costly safety devices and of an equipment for filtering water but this technology allows accurate cuttings in hard-to-reach zones. Mechanical cutting is the most favourable technology in terms of wastes generation and of the clarity of water but the cutting speed is low. (A.C.)

[en] In the real production functioning of the cutting tool takes place in the conditions of properties dispersion of the technological system elements that defines stochastic character of the cutting process parameters. As a result casual character has a basic data-out of cutting process - the cutting tool life. It is presented the method of the cutting regimes optimization taking into account the variation coefficient and the distributing law of the cutting tool life as casual value. The analysis of the optimization criteria (productivity and prime price) as functions of casual argument - the cutting tool life is executed. There are got analytical dependences, which allow taking into account dispersion of the cutting tool life at determination of its optimum value. There are set the correction coefficient on the productivity and prime price optimum cutting speeds taking into account the coefficient of cutting tool life variation. There are set the necessary for providing of the set level of reliability the coefficient of the cutting regimes change. (paper)