Author: haroonkhan

A driving mechanism of a planer consists of an electric motor situated over the housing. The motor shaft is coupled with a counter shaft. The counter shaft, at its extreme end, carries two driving pulleys: one for open belt and other for cross belt. The main driving shaft is provided below the bed. Its one…

A constructional detail of planer is shown in Figure 19.27. Following are the components of the planer: Figure 19.27 Constructional Details of Planer Bed: Bed is a cast iron structure; it is very large and heavy and supports whole structure of the machine over it. Table: Table is made of cast iron. At its top, it carries longitudinal T-slots…

Shaper can be specified in the following terms:

Rotary motion of the bull gear is converted into a reciprocating motion of the ram through the crank and arm. The cutting is done in the forward stroke and the return stroke is idle. The time of return stroke is reduced to compress the total machining time which is known as quick return mechanism. The…

Slotter machine is applied

Vertical shaper machine is also known as slotter in a workshop but the fundamental difference between vertical shaper and slotter is that the frame of vertical shaper is fixed and cannot be tilted whereas the frame of slotter can be tilted at any angle. The small angle may be given to tool to the vertical…

Constructional detail of shaper is shown in Figure 19.25. Following are the parts of the shaper machine. Figure 19.25 Constructional Details of Shaper Base: Base is made of grey cast iron to absorb the vibration and it is bolted to shop floor. Column: It is housing of ram, quick return mechanism, and table. A ram reciprocates on the top of…

Shaping and planning are the oldest methods of machining. They are seldom used in production and have been replaced by milling and broaching. The major difference between two is that, in shaping the reciprocating or cutting motion is provided to the tool and the feed is given to the workpiece, whereas in planning, it is…

Shaper and planer are very old machine tools. They are used to produce a plane surface, inclined surface, and slots. But due to consumption of excess time, they are replaced by milling machines in large production. In shaper, cutting tool is provided reciprocation motion and job is provided only feed motion. Normally, forward stroke is…

Turning is a metal removal process in which job is given rotational motion while the cutting tool is given linear (feed and depth of cut) motion. Different types of turning operations are mentioned as follows: Straight Turning: It is the operation of producing a cylindrical surface of a job by removing excess material. In this operation,…