COMMON OPERATIONS LATHE MACHINE

LATHE MACHINE

INTRODUCTION COMMON OPERATIONS KNURLING RECESSING LATHE MACHINE POINTS COVERED INTRODUCTION COMMON OPERATIONS KNURLING RECESSING

LATHE MACHINE INTRODUCTION A MACHINE TOOL IS A POWER DRIVEN APPARATUS DESIGNED TO PERFORM METAL CUTTING BY VARIOUS TYPES OF CUTTING TOOLS MOSTLY THE MACHINED SURFACES ARE REQUIRED TO BE CYLINDRICAL OR FLAT THE WORK OF MACHINE TOOLS IN GENERAL IS CONCERNED WITH PRODUCING ONE OR BOTH

LATHE MACHINE INTRODUCTION THE LATHE IS A MACHINE TOOL REMOVES THE METAL FROM A PIECE OF WORK TO GIVE THE REQUIRED SHAPE AND SIZE. BY HOLDING THE WORK SECURELY AND RIGIDLY ON THE MACHINE AND THEN TURNING IT AGAINST CUTTING TOOL REMOVE METAL FROM THE WORK IN THE FORM OF CHIPS.

LATHE MACHINE KNURLING PROCESS OF EMBOSSING A DIAMOND SHAPE PATTERN ON THE SURFACE OF A WORK PIECE. PURPOSE OF KNURLING IS TO PROVIDE AN EFFECTIVE GRIPPING SURFACE ON A WORK PIECE

LATHE MACHINE KNURLING TO PREVENT FROM SLIPPING WHEN OPERATED BY HAND. IN SOME PRESS FIT WORK KNURLING IS DONE TO INCREASE THE DIAMETER OF A SHAFT. OPERATION IS PERFORMED BY A SPECIAL KNURLING TOOL

LATHE MACHINE KNURLING CONSISTS OF A SET OF HARDENED STEEL ROLLERS IN A HOLDER WITH THE TEETH CUT ON THEIR SURFACE IN A DEFINITE PATTERN. KNURLS ARE AVAILABLE IN COARSE, MEDIUM AND FINE PITCHES.

LATHE MACHINE RECESSING ALSO BE CALLED AS GROOVING OR NECKING. TOOLS ARE SOMETIMES CALLED NECKING TOOLS. TOOLS MAY BE EITHER STRAIGHT OR BENT SHANK TYPES.

LATHE MACHINE RECESSING RECESS IS USUALLY NARROW, THE CUTTING EDGE IS KEPT NARROW. TOOL IS RELIEVED BY 1O TO 2O ON EACH SIDE TOWARDS THE SHANK. SIDES ARE RELIEVED TO MAKE THE TOOL FREE CUTTING.

LATHE MACHINE RECESSING RAKE ANGLE SHOULD BE DECREASED OR THE FACE SHOULD BE MADE HOLLOW TO THE RADIUS. THE TOOL SHOULD BE SET EXACTLY IN CENTRE. TOOL IS SET BELOW OR ABOVE THE CENTRE, IT WILL BREAK.

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