Results 21 to 30 of about 105,404 (327)

Design study of the geometry of a punching/blanking tool [PDF]

open access: yes, 1992
The cost of tooling in sheet metal industries contributes a considerable part to the overall cost of manufacturing a component. It is therefore imperative to keep down this cost by ensuring that the tool works for a long period in production without ...
Kals, H.J.J.   +2 more
core   +3 more sources

Reliability and Practical Use of a Commercial Device for Measuring Punch and Kick Impact Kinetics

open access: yesSports, 2022
Martial arts, boxing and combat sports such as mixed martial arts participation have gained popularity in recent years internationally. One common aspect to these sports is the training and skill in maximizing strike impact of punches and kicks, referred
Luke Del Vecchio   +4 more
doaj   +1 more source

Comparison of Punching Shear Design in Finland According to the Current and the Former Method

open access: yesNordic Concrete Research, 2019
In the beginning of 2017 the design method for punching shear in Finland was changed. The method presented in Eurocode 2 was adopted with some nationally determined parameters and rules.
Lehtonen Tuomas   +2 more
doaj   +1 more source

Twinning and Slip in Zinc by Indentation [PDF]

open access: yes, 1968
Observations of twinning and slip deformation caused by indentation of zinc reveal that extensive slip on the basal and second-order pyramidal systems takes place at loads up to 5 kg.
Blish, R. C., II, Vreeland, T., Jr.
core   +2 more sources

Determination of the Punching Cross-Section of Reinforced Concrete Flat Slabs [PDF]

open access: yes, 2016
In this paper, the punching shear resistance of slabs without punching shear reinforcement is investigated. We assumed that the punching shear resistance can be characterized by the shear resistance of the concrete compression zone, and that the load ...
Bogdándy, Béla, Hegedűs, István
core   +2 more sources

Characterization of galling during dry and lubricated punching of AA5754 sheet

open access: yesAdvances in Industrial and Manufacturing Engineering, 2021
When sheets of aluminum alloys are pierced or trimmed, tool failure occurs by the transfer of material from the sheet to the surface of the tool.
Shayan Shirzadian   +2 more
doaj   +1 more source

Implementasi Single Minute Exchange of Dies (Smed) Untuk Optimasi Waktu Changeover Model Pada Produksi Panel Telekomunikasi [PDF]

open access: yes, 2017
Sebagai salah satu Perusahaan pembuat panel telekomunikasi dan panel elektrik, PT. Cometal dihadapkan pada tantangan waktu delivery yang kompetitif. Permasalahannya Perusahaan masih mengalami keterlambatan pengiriman produk ke konsumen akibat lamanya ...
Hasibuan, S. (Sawarni)   +1 more
core   +3 more sources

Digital Twin-Driven Cyber-Physical System for Autonomously Controlling of Micro Punching System

open access: yesIEEE Access, 2019
Microstructure functional surface is widely used in an optical system because of its special micro-topological structure and particular physical properties.
Rongli Zhao   +6 more
doaj   +1 more source

Effect of Shape, Number, and Location of Openings on Punching Shear Capacity of Flat Slabs

open access: yesBuildings, 2021
Experimental evidence have proved that punching shear capacity of flat slabs deteriorate with the presence of openings located within the critical perimeter around columns.
Ekkachai Yooprasertchai   +5 more
doaj   +1 more source

Science with a punch [PDF]

open access: yesCurrent Biology, 1997
There are changes afoot in the way that US granting agencies, most notably the NIH, evaluate proposals. Change can be a good thing, and it is probably high time that the NIH reassessed how grants are evaluated. Frankly, I was becoming blase about the entire granting process.
openaire   +2 more sources

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