CHAPTER TWO SAFETY. 2.1. INTRODUCTION. Safety should be uppermost in the minds of all machine technology workers. It should become a state of mind so that reactions become automatic in any dangerous situation. 2.2. Safety Objectives:. 1- Practice safety in all phases of machining technology.
2.1. INTRODUCTION • Safety should be uppermost in the minds of all machine technology workers. It should become a state of mind so that reactions become automatic in any dangerous situation
2.2. Safety Objectives: • 1- Practice safety in all phases of machining technology. • 2- Make decision to safeguard the health, safety and welfare of persons at work. • 3- To protect general public from risks to health and safety caused by the activities of persons at work. • 4- To control the keeping and use of materials and dangerous substances. • 5- To control the emission into the atmosphere.
2.3. Familiarity and know-how may be obtained by: • 1- A formal course of instruction • 2- Personal instruction by an experienced qualified machinist • 3- A careful reading of the manufacturer's operating instructions that accompany the machine
2.4. How do accidents happen? • 1- Inattention, taking chances, fatigue, and uncooperativeness. • They are also caused by; • 2- Poor supervision or instruction improperly guarded machine, improper clothing, defective tools or equipment, insufficient working area and poor lighting.
2.5. GENERAL RULES of SAFETY: • 1- Do not operate any machine before you have received instructions on the correct and safe procedures from your instructor. It is not wise to ask another student for proper procedure • 2- All machines should have effective guards that should always be in place when machines are operating. • 3- Always stop the machine and switch off the power before making any adjustments. • 4- Always keep your hands and body away from all moving parts. • 5- Always wear specific eye protection in all phases of machine shop work. • 6- Do not wear loose clothing; remove ties, rings, watches, etc.
2.5. GENERAL RULES of SAFETY: • 7- Keep tools and other materials in their proper places. Keep the floor clear of chip and objects. • 8- Only one operator at a time should control a machine • 9- If the instructor leaves the shop for any reason, the power should be shut off. • 10- Horseplay, practical jokes, and running should be prohibited in shop area. • 11- When lifting heavy objects, follow safe lifting procedures. • 12- Contact lenses should not be worn in ant shop or industrial area.
2.5. GENERAL RULES of SAFETY: • 13- In all cases, clean machinery thoroughly when you have finished work. • 14- If you have any question, ask the instructor, not another student. • 15- Do not rush or take chances. Observe all safety rules. • 16- Do not work in the shop if too tired or fatigued.
2.6. EYE PROTECTION: • Eye protection is important enough to be in a special category of its own: • 1- Proper eye protection should be worn in a machine shop under all conditions • 2- In the presence of molten metals, or sparks of any kind, a proper face shield should be worn. • 3- For any operation involving drilling, lathe work, milling, sawing, grinding, and any other machine tool operation, or benchwork, safety glasses must be worn. • 4- For heat treating furnace work, a proper face shield must be worn. • 5- Gas welding, arc welding or any other form of welding requires the use of proper welding goggles or face shield.
2.6. EYE PROTECTION: • 6- For hygienic reasons, it is best to have your own personal eye protective equipment. • 7- Contact lenses should not be worn in the machine shop for the following reason: • a- Some gases, vapors and other materials that will harm the eyes can be absorbed by contact lenses. • b- Electric arcs can cause the contact lenses to stick to the eye, causing serious injury when trying to remove the lenses.
2.7. SAFETY RULES APPLY TO BENCHWORK SHOP: • 1- Always wear safety goggles. • 2- In chipping with chisel always chip away from yourself and others. • 3- Hold work securely in bench vise. • 4- Never use a chisel with a mushroomed head. • 5- Never strike two hardened surfaces together. • 6- If job is hot, mark it in some way to make the face known to other who may come in contact with it. • 7- Place sharp or pointed tools in such a way that their points or cutting edges will not cause injury to anyone. • 8- Use a brush to remove chips or filings. • 9- Refrain from any sort of horseplay.