Metal stamping – assessment of future production technology

As a whole sheet metal stamping preserve the leading position among other methods of the plastic metal working including processing of initial material in industrial scope and specific position of the sheet metal stamping equipment in general stock of the press-forging machinery.

The most precise methods of the sheets processing and their combinations will receive the priority development in the metal stamping production.

The crank machines having the maximum productivity, the best automation means and practically unlimited number of the metal stamping positions will constitute the base of the sheet metal stamping stock.

Change-over from the lines consisting of separate presses connected with automation means to the transfer presses will trace during metal stamping of the large-scale parts from the sheet.

Precise processing and bending of a sheet for subsequent welding or other intermediate and assembly operations (pipes ribbing with band, sheet cutting with end formation for welding etc.) will characterize the metal stamping. Alignment of cutting, bending, straightening and metal stamping operations in different combinations will typical both the multifunctional unique machines, processing centres and flexible production systems.

Different modifications of universal and special sheet metal stamping presses with hydraulic drive including operation-by-operation metal stamping equipped by NC have demand on the market.

Metal stamping of flat parts from the sheet (band, stripe, piece blanks) is of interest especially in the sphere of precise blanking ensuring not only «pure» contour of the blanking part, but at the same time strengthening with reduce to the required vertical dimension (by thickness) at the expense of coining, sizing or other operations.

Parameters of the plastic forming defining velocity and machining quality in the most complex and responsible technological processes of the mass and large-scale production (deep drawing, metal stamping of the large-scale body parts etc.) are approximated to the limit values specified by the properties of the machined metal or deformed tool and possibilities of the kinematics diagrams of the used equipment.

Element-by-element decomposition of the production process: preliminary forming and bending of blanks before final metal stamping in combination with several operations reducing the technological load is preserved up today.

New technological processes of the sheet processing are widely practised in the sheet metal stamping production.

Such trends as electromagnetic and electrohydraulic-pulsating stamping, vibrostamping, deformation with application of pulsating load, press-free metal stamping methods, rotating drawing etc. are given an opportunity for renewal of the plastic metal working methods and means.