By Frank Vollertsen (auth.), Frank Vollertsen (eds.)
Micro steel Forming, i. e. forming of elements and lines with dimensions lower than 1 mm, is a tender region of analysis within the large box of steel forming applied sciences, increasing the boundaries for utilizing steel forming in the direction of micro expertise. the basic demanding situations come up from the decreased geometrical measurement and the elevated lot measurement. with a view to allow strength clients to use micro steel forming in construction, information regarding the subsequent themes are given:
- tribological habit: friction among instrument and paintings piece in addition to instrument wear
- mechanical habit: power and formability of the paintings piece fabric, sturdiness of the paintings items
- size results: uncomplicated description of results taking place considering that, that the quantitative relation among diverse positive factors adjustments with reducing measurement
- process home windows and boundaries for forming processes
- tool making methods
- numerical modeling of tactics and procedure chains
- quality coverage and metrology
All subject matters are mentioned with appreciate to the questions correct to micro steel forming. the outline contains info from real study and the younger background of this know-how department for use through scholars, scientists and engineers in who have already got a heritage in steel forming and prefer to extend their wisdom in the direction of miniaturization.
- tribological habit: friction among instrument and paintings piece in addition to device wear
- mechanical habit: power and formability of the paintings piece fabric, toughness of the paintings items
- size results: easy description of results happening on the grounds that, that the quantitative relation among assorted gains adjustments with reducing dimension
- process home windows and bounds for forming processes
- tool making methods
- numerical modeling of tactics and strategy chains
- quality coverage and metrology
All subject matters are mentioned with admire to the questions correct to micro steel forming. the outline contains details from genuine examine and the younger historical past of this expertise department for use by way of scholars, scientists and engineers in who have already got a historical past in steel forming and prefer to extend their wisdom in the direction of miniaturization.
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Additional resources for Micro Metal Forming
Example text
On the other hand, the effect might occur in a processing chain. Due to its indirect mechanism it is called a secondary artifact. 1 Tribological System In metal forming there is always an interaction between the workpiece and forming tool, caused by direct physical contact and relative motion. The result of this physical interaction is friction and wear. The science of interacting surfaces, which is related to friction, wear and lubrication, is called ‘‘tribology’’. g. wear rate) frictional values: - frictional power - heat generation output BIAS ID 121988 Fig.
10(1), 19–22 (2003) 15. : Production of microparts—size effects in bulk metal forming. Similarity theory. Prod. Eng. IV/1 55–58 (1997) 16. : Application of strain analysis to sheet metal forming problems in the press shop. Soc. Automot. Eng. 4271/680093 17. : Untersuchung und theoretische Beschreibung wichtiger Einflußgrößen auf das Grenzformänderungsschaubild. Bleche Rohre Profile 25 pp. 213–220, 285–292, 493–499, 619–627 (1978) 18. : Tensile test of very thin sheet metal and determination of flow stress considering the scaling effect.
14 a Principle of double deflection stripe drawing test. b Drawn stripes in different process dimensions [48] 26 F. 1 0 0 4 8 N/mm2 16 Pressure p Punch diameter Lubricant Initial blank holder pressure 1 mm HBO 947/ 11 1 N/mm 2 Material Amount of Lubricant Al99. 5 4 g/ m 2 BIAS ID 121993 Fig. 15 Friction function based on friction coefficients calculated from experimental punch force versus travel curves [48] can also be implemented in FEM-simulations to realize an improve model and taking the size dependency of the friction into account.