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Some More Problems Solved by Drawing
Published in Ken Morling, Stéphane Danjou, Geometric and Engineering Drawing, 2022
Cams are used in machines to provide a controlled up and down movement. This movement is transmitted by means of a follower. A cam with a follower is shown in Figure 12.13 in the maximum ‘up’ and ‘down’ positions. The difference between these two positions gives the lift of the cam. The shape of the cam, its profile, determines how the follower moves through its lift and fall.
Compression
Published in Sam A. Hout, Manufacturing of Quality Oral Drug Products, 2022
Individual cams comprise a transport system that the punches must travel. This involves straight sections as well as curves. Working cams are usually made of bronze or very dense plastic to reduce wear on the more expensive, hardened, steel punch heads. Proper lubrication is a must to extend tool life.
Tribology of Automotive Components
Published in Ahmed Abdelbary, Extreme Tribology, 2020
In an engine, the opening and closing of valves is invariably controlled by cam/tappet mechanism. This mechanism usually consists of two moving elements: The rotating cam and the tappet (follower) mounted on a fixed frame. The cam is driven from the crankshaft in order to ensure synchronization of the valve motion with the combustion cycle and piston movement. In general, there are different types of surface contact between a cam and a follower and, according to surface contact, they are classified into roller, flat, knife edge and spherical follower, as shown in Fig. 7.11.
Numerical model proposed for a temporomandibular joint prosthesis based on the recovery of the healthy movement
Published in Computer Methods in Biomechanics and Biomedical Engineering, 2018
Henrique Takashi Idogava, Pedro Yoshito Noritomi, Gregory Bregion Daniel
In order to allow a comparison with the responses of a healthy mandible available in literature (Missaka 2010; Mesnard et al. 2012), the rotation and translation functions were analyzed together to represent the real movement presented in the TMJ. For this, forms of planar mechanisms were analyzed as a solution alternative, allowing the visualization of the trajectory adopted. The mechanical system used in this application is based on Cam-Follower Mechanism, in which the cam is a solid body formed in such a way that the movement of its trajectory defines the movement of the second body attached to it, the follower (Doughty 2001). The cam provides a similar form of movement in which an analogy can be made to the analyzed system.
Performance of energy-efficient rice mills
Published in International Journal of Ambient Energy, 2020
M. Karthick, D. L. Belgin Paul, A. Sathesh Kumar
The M cam is made of low alloy steel, EN8 of carbon 0.32% and chromium 0.22% which is surface hardened to 47 HRC. The M cam gives a life of 12 months. The B cam has a life three times that of the M Cam and hence 20MnCr5 steel is recommended for the cam of the rice polisher.