Anıl UZAL, 030070012, 7th Week

Plate Rolling: (29.03.2011 ; 18:20)

Plate rolling is characterized by the rolling of base steel with relatively fixed thicknesses and widths (hereinafter referred to as slabs) not only in the longitudinal direction but also in the transverse direction in order to get products of diverse dimensions.

Plate rolling process is roughly divided into the following three stages:

Stage 1(sizing rolling): In this initial stage, a slab is rolled in the longitudinal direction for 1 to 4 passes in order to eliminate the effects of slab surface conditioning, to produce an accurate slab thickness, and to improve the width accuracy of rolled plate in the next broadside rolling.

Stage 2 (broadside rolling): To obtain a required rolled width, the slab is turned around 90 degrees and rolled in the transverse direction.

Stage 3 (finishing rolling): Again, the slab is turned around 90 degrees and rolled in the longitudinal direction to a required plate thickness.

(T Yanazawa, J Miyoshi, K Tsubota, T Ikeya, H Kikukawa, K Baba, “Development of a New Plan View Pattern Control System in Plate Rolling”, Kawasaki Steel Technical Report, No. 1 September 1980, page 33-34)

Ice Blasting: (29.03.2011 ; 19:55)

Deburring of complex components is subject to formidable efforts in terms of time and expenses. In order to ensure quality and due to lack of operational alternatives, these efforts are inevitable. As a result, even in times of continuous automation components must often be deburred manually. In order to counteract this trend and keep up with heightened requirements of production, implementation of a new and innovative deburring procedure, which will be presented here, needs to be promoted. The procedure is referred to as ice blasting or ice deburring.

The procedure investigated here is essentially a blasting method using a solid blast medium. The innovative idea at the foundation of this endeavour lies in the use of ordinary ice as a blast medium. The advantage of ice is its property to not leave any solid residue behind and in that it is consequently applicable to the blasting treatment of complex component geometries, as shown in Fig. 1. In this current case the diameter of hole is 5 mm and the position of burr in hole is 30 mm distant from access.

(B. Karpuschewski, M. Petzel, “Ice Blasting – An Innovative Concept for the Problem-Oriented Deburring of Workpieces”, Burrs - Analysis, Control and Removal 2010, Part 6, page 197)

Digital Mock Up: (29.03.2011 ; 20:10)

In particular, digital mock-up (DMU) allows designers to investigate the assembly feasibility of a product and the constraints imposed by manufacturing processes. DMU allows the user to represent the structure of a product and the accurate position of its geometry, and enables a multidisciplinary presentation of assembly processes and analysis (design ‘in context’) such as insertion, view and collision. Through DMU, it is possible to obtain a virtual representation of a product and simulate the shape, function and spatial positioning of its components or subsystems, as well as of the necessary production tools. By providing the basic representation of a product, DMU permits to share the core product data that the different company areas and disciplines use to collaborate.

(Corallo et al., “Digital Mock-up to Optimize the Assembly of a Ship Fuel System”, Journal of Modelling and Simulation of Systems, Vol.1-2010, Iss. 1, page 5)

(EMS) Electronic Manufacturing Service: (30.03.2011 ; 13:45)

Companies who offer manufacturing related services to OEMs. A similar acronym, CEM (contract electronics manufacturer) was used widely to describe companies who concentrate more on production, while EMS companies are those which concentrate more on providing comprehensive services.

(E. Zhai et al., Int. J. Production Economics 107 (2007), page 2)