Open AccessPerfection of the design of pressforming aggregates shearing instrument
Author(s) -
А. Н. Смирнов,
Olexander Kovalenko,
С. В. Куберский,
E. E. Bizyanov,
Н. В. Коваленко
Publication year - 2018
Publication title -
černaâ metallurgiâ. bûlletenʹ naučno-tehničeskoj i èkonomičeskoj informacii/černaâ metallurgiâ. bûlletenʹ naučno-tehničeskoj informacii
Language(s) - English
Resource type - Journals
eISSN - 2619-0753
pISSN - 0135-5910
DOI - 10.32339/0135-5910-2018-12-89-96
Subject(s) - service life , materials science , coating , shearing (physics) , durability , hardening (computing) , mechanical engineering , composite material , process engineering , forensic engineering , layer (electronics) , engineering
Study of interaction dynamics of stamp instrument with surrounding environment, expanding of its technological abilities and increase of its service life is an important and actual scientific and practical task. Results of theoretical and experimental studies of stamp instrument influence on its deformation state and durability presented. Estimation of deformation state and its distribution by hardened layer depth at the instrument cutting edges made. A new form of punch proposed, as well as vanadium hardening of its cutting edges by application of electro-spark alloying (ESA) method. Technological regimes of coating allocation, providing increase of stamps service life elaborated. Study of phase content and layer depth after ESA made. Advantages of vanadium hardened by ESA method stamp instrument considered from the point of view of amount and distribution of tension, micro hardness and hardened layer depth. Influence of those advantages on the increase of the equipment technological resource, decrease of specific material and power costs, increase of products quality and technological aggregates efficiency shown. It was proposed in the course of further studies to estimate the influence of the punch surface roughness on the hardness of the obtained by ESA method hardened layer and arears around it, to determine the optimal coating thickness as well as influence of the deformed material thickness on the considered processes.