Deep-drawability

Chem. Descrip. Linear high m.w. sat. polyester resin Uses Polyester for coil coating primers and one-coat systems, laminate adhesives, deep-drawable, stamping enamels for can coatings Properties Sp.gr. 1.23 (20 C) acid no. < 3 hyd. no. 9 100% solids Dynapol L 490 [Degussa AG/Coatings Colorants]... 

Source J. Kaneko and M. Sugameta, The Effects of hleat Treatment on the Deep Drawability of Ti-3AI-2.5V Sheets. Titaruum, Science and Technology, Vol 2, G. Lu ring, U. Zwicker, and W. Bunk, Ed., Deutsche Gesellschaft fur Metallkunde, Germany, 1985, p 563 -568... 

In sheet-metal-forming technology, the drawability of the deep-drawn containers (e.g., oil filters and compressor housings) [37] can be predicted from the average normal anisotropy, r, in the sheet, given by... 

It is important to point out that the press-forming processes used in the industry to form automobile bodies, domestic consumer durables, beverage cans, and so forth can be considered as specific forms of deep drawing therefore, a close control of r values affects a large sector of manufacturing industry. A combination of a high r, value and a low A r values gives optimum drawability. 

The effect of friction on deep drawing or cupping is twofold. Lubrication of the flange is advantageous due to the reduction of work expended to overcome friction. On the other hand, high friction on the cylindrical surface of the punch increases drawability. 

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