Answer :
Final answer:
Circular saws, drilling machines, and lathes perform mechanical actions crucial to manufacturing, showcasing rotational motion primarily. Circular saws and drilling machines cut and create holes using this motion, while lathes execute turning to shape materials. Understanding these actions is fundamental in engineering and machining.
Explanation:
Mechanical Actions of Circular Saws, Drilling Machines, and Lathes
Circular saws, drilling machines, and lathes are all tools that perform specific types of mechanical actions relevant to manufacturing and construction.
Circular Saws
Circular saws use a toothed or abrasive disc to cut through materials. The mechanical action involved here is rotational motion, where the circular blade rotates around its axis to slice through the material with high speed and efficiency.
Drilling Machines
Drilling machines, also known as drills, use a rotating drill bit to create holes in various materials. Like circular saws, they also utilize rotational motion, but the action is typically combined with translational motion as the drill bit is pushed into the material to effectuate the drilling process.
Lathes
Lathes perform a different type of mechanical action, known as turning. This involves rotating a workpiece on its axis while a cutting tool is fed into it, allowing precise shaping and cutting of materials in a cylindrical form.
In summary, these machines demonstrate the three main types of mechanical actions: rotational motion (circular saws and drilling machines) and turning (lathes), which are crucial in various engineering applications.
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