Ensuring the integrity in clinching process

J Varis - Journal of Materials Processing Technology, 2006 - Elsevier
Clinching is a mechanical joining method, especially for sheet metal parts. The process is
perceived as being a simple method that is based on only the accurate movement of a punch …

Construction and demolition waste as a raw material for wood polymer composites–Assessment of environmental impacts

…, J Havukainen, M Hyvärinen, T Kärki, J Varis… - Journal of Cleaner …, 2019 - Elsevier
The European Commission's ambitious construction and demolition waste (CDW) material
recovery target has placed pressure on Finland to increase its CDW material recovery rate. It …

Tool condition monitoring in interrupted cutting with acceleration sensors

J Ratava, M Lohtander, J Varis - Robotics and Computer-Integrated …, 2017 - Elsevier
Tool breakage is a serious issue in conditions with highly variable stress such as interrupted
turning. The tool may fail suddenly though commonly tool failure is preceded by other …

Review of natural fiber-reinforced engineering plastic composites, their applications in the transportation sector and processing techniques

V Chauhan, T Kärki, J Varis - Journal of Thermoplastic …, 2022 - journals.sagepub.com
Interest in natural fiber-reinforced polymer (NFRP) composites is growing rapidly in the
transportation sector, especially as a replacement material for metals and synthetic fiber …

Intelligent process planning for smart manufacturing systems: A state-of-the-art review

H Besharati-Foumani, M Lohtander, J Varis - Procedia Manufacturing, 2019 - Elsevier
Process planning is a decision-making procedure to determine the required manufacturing
processes and machine tools, and the sequence of the activities that the processes should …

Chatter detection in turning processes using coherence of acceleration and audio signals

…, M Lohtander, J Varis - Journal of …, 2014 - asmedigitalcollection.asme.org
Chatter is an unfavorable phenomenon in turning operation causing poor surface quality.
Active chatter elimination methods require the chatter to be detected before the control reacts. …

Self-monitoring of blood pressure in hypertension: a systematic review and individual patient data meta-analysis

…, G Parati, N Qamar, BP Tabaei, J Varis… - PLoS …, 2017 - journals.plos.org
Background Self-monitoring of blood pressure (BP) appears to reduce BP in hypertension
but important questions remain regarding effective implementation and which groups may …

A simple testing-based procedure and simulation of the clinching process using finite element analysis for establishing clinching parameters

JP Varis, J Lepistö - Thin-Walled Structures, 2003 - Elsevier
The focus of this paper is on a non-cutting, single stroke clinching method that produces an
axisymmetric joint. Here, a simple procedure based on testing and calculation of volumes is …

Economics of clinched joint compared to riveted joint and example of applying calculations to a volume product

J Varis - Journal of Materials Processing Technology, 2006 - Elsevier
Clinching is a mechanical joining method especially for sheet metal parts based on forming
of joined materials, and no additional joining elements are needed. Remarkable benefits in …

Prevalence and prognosis of ECG abnormalities in normotensive and hypertensive individuals

AO Lehtonen, P Puukka, J Varis, K Porthan… - Journal of …, 2016 - journals.lww.com
Objective: To define the prevalence and prognosis of ECG abnormalities in hypertensive
individuals. Methods: ECG, blood pressure and other cardiovascular risk factors were recorded …