Manufactoring Process

Topics: Lathe, Cutting, Cutting tools Pages: 9 (2006 words) Published: July 18, 2013
INTRODUCTION
This lab experiment required students to learn and participate on the usage of a manual lathe machine in order to shape a given raw material into a given specified end product. The class was divided into groups of 4 students. Each group will be assigned to one manual lathe machine and given three pieces of cylinder shaped mild steel rod and a schematic diagram to. A lab technician will brief the students in the usage of the machine and the processes required to machine the specified parts, then the students will be required to machine the parts themselves.

PURPOSE OF EXPERIMENT

The purpose of this experiment is to learn and realize between the knowledge from book and the practically experiment in lab section. By practical work, we can actually experience the work process from basic things which are the basic capabilities, basic machine parts, basic safety and rule.

Basic Capabilities

The goal of this SOP and the accompanying “training” is not to make you a lathe operator/machinist, but to make sure you can safely do certain tasks. It applies to all students, staff, faculty and others who wish to use the machine shop! This SOP should be read, fully understood, and reviewed at the machine with the Shop Manager. Every machine user will have to take the “Basic User Safety Test”, demonstrate “hands-on” proficiency and then sign the “BASIC USER CLEARANCE FORM & SUPERVISED EXPERIENCE LOG” before being approved to operate the machine. The allowable machining tasks will be limited to those covered in this SOP. There is much more to using a lathe than what is covered in this SOP. Always ask before doing a new operation!

[pic]

Figure 1: Manual Lathe Machine

The goal of this SOP and the accompanying “training” is not to make you a lathe operator/machinist, but to make sure you can safely do certain tasks. It applies to all students, staff, faculty and others who wish to use the machine shop! This SOP should be read, fully understood, and reviewed at the machine with the Shop Manager. Every machine user will have to take the “Basic User Safety Test”, demonstrate “hands-on” proficiency and then sign the “BASIC USER CLEARANCE FORM & SUPERVISED EXPERIENCE LOG” before being approved to operate the machine. The allowable machining tasks will be limited to those covered in this SOP. There is much more to using a lathe than what is covered in this SOP. Always ask before doing a new operation!

Basic Machine Parts

[pic]

Figure 2: Introduction of manual lathe machine (1)

SPINDLE LOCK KNOB - For keeping the spindle from rotation when tightening or loosening collets.

TAILSTOCK - For accurately holding the tailstock spindle.

TAILSTOCK HAND WHEEL - For moving the tailstock spindle toward or away from the work piece.

TAILSTOCK SPINDLE - For holding drill chucks or lathe centers in the tailstock.

SPINDLE SPEED DISPLAY - Shows the spindle speed in Rotations Per Minute (RPMs).

SPINDLE SPEED KNOB - For adjusting the speed of the lathe spindle.

CARRIAGE (aka, SADDLE) - Moves the tool post, cross slide toward or away from the chuck.

EMERGENCY STOP SWITCH - For shutting off the spindle rotation and feeds in case of an emergency!

[pic]

Figure 3: Introduction of manual lathe machine (2)

COLLET CHUCK - For holding small diameter work pieces in the spindle of the lathe.

TOOL POST - For holding and quickly changing between different Tool Holders.

TOOL HOLDER - For holding lathe bits and other lathe cutting tools.

COMPOUND SLIDE HAND WHEEL - For manually feeding cutting tools at an angle to the spindle.

CROSS SLIDE HAND WHEEL - For manually feeding cutting tools across the spindle (the X axis).

CARRIAGE HAND WHEEL - For manually feeding cutting tools in line with the spindle (the Z axis).

CROSS SLIDE FEED LEVER - For turning the auto feed for the cross slide on and off.

CARRIAGE FEED LEVER - For turning the auto feed for the...
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