WORKSHOP TECHNOLOGY (JJ104) CHAPTER 5 : MILING MACHINE
WORKSHOP TECHNOLOGY(JJ104)
CHAPTER 6 : MILING MACHINEPN. NURUL AYUNI BINTI ABDUL LATIF
AMIRUL IZWAN BIN MAT SUDI(19DMA13F2006)SULASIYAH BINTI HAMIDI (19DMA13F2020)NUR SAFIKAH BINTI BAKAR (19DMA13F2007)MUHAMMAD ZAWAWI BIN ABDUL HAMID (19DMA13F2018)INTRODUCTION OF MILLING MACHINEMilling is themachiningprocess of using rotarycuttersto remove materialfrom a workpiece advancing (orfeeding) in a direction at an angle with the axis of the tool.It covers a wide variety of different operations and machines, on scales from small individual parts to large, heavy-duty gang milling operations. It is one of the most commonly used processes in industry and machine shops today for machining parts to precise sizes and shapes.KNEE-TYPEUsed for general-purpose milling operationMost common milling machineMilling cutter mounted on spindle maybe horizontal for peripheral milling orvertical for face and end milling, boring & drilling operationsPlain milling machines have three (3) axes of movement (X,Y,Z)Universal knee-type milling machine, the table can be swiveled on a horizontal plane
TYPES AND CHARACTERISTICS OF MILLING MACHINE
TYPES AND CHARACTERISTICS OF MILLING MACHINERAM-TYPE MILLING MACHINECharacterized by a spindle mounted to a movable housing on the columnIt is to permit positioning the milling cutter forward or rearward in a horizontal plane. Two common type: universal milling machine & swivel cutter head ram-type milling machine.
TYPES AND CHARACTERISTICS OF MILLING MACHINEBED-TYPE MILLING MACHINEWork table is mounted directly on the bedBed replaces the knee and can move only longitudinallyNot versatile as other types, but have high stiffness and typically used for high production workSpindles maybe horizontal or vertical and of duplex or triplex types (with two or three spindles) for the simultaneous machining of two or three workpiece surfaces
TYPES AND CHARACTERISTICS OF MILLING MACHINEComputer Numerical Control (CNC) MILLING MACHINERapidly replaces conventional milling machinesThese machine tools are versatile and capable of milling, drilling, boring, and tapping with repetitive accuracyProfile milling machines have five axes of movement
PARTS AND CHARACTERISTIC OFUNIVERSAL MILING MACHINE
BASIC PRINCIPLES OF MILING MACHINE
Horizontal Milling MachineSpindle motion is assigned Z axis.BASIC PRINCIPLES OF MILING MACHINEVertical Milling MachineSpindle motion is assigned Z axis.
CONCLUSIONAfter doing this presentation,we all know and understanding about types, characteristics, parts and basic principal of milling machine.We can define what the suitable milling machine that we can uses for certain type of work on workpiece.
