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Garden Trowel Revision Notes. Steel. Rod. Bar (Flat & Square). Sheet. For this project we used sheet steel for the blade and flat bar for the handle. In the school workshop we have the following types of Steel. Steel and its uses.
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Steel Rod Bar (Flat & Square) Sheet For this project we used sheet steel for the blade and flat bar for the handle. In the school workshop we have the following types of Steel
Steel and its uses Steel is the most commonly used metal and is used in everything from Sewing needles to Skyscrapers HMS Ark Royal AHS Library Advantages: Low Cost, High Strength & Easy to work with. Disadvantages: Rusts The Golden Gate Bridge
Guillotine The Guillotine was used to cut the blade to shape. When using this machine pupils should be aware of the following hazards Closing movement between shearing surface and other parts can result in trapping and serious injury. Sharp edges on cut material can cause cuts. (When carrying large sheets of metal wear gloves) Lack of space around the guillotine can lead to the operator being pushed by passers by. Slippery floor surface or loose items around the machine can cause slips that result in contact with moving parts. Manual handling of sheet metal can present a hazard. Conditions of use. Only one person is allowed to use this equipment at a time.
Guillotine The Guillotine or Bench Shears is primarily designed for cutting sheet metal (up to 4.8mm thick). However they can also be used to cut round or square section metal via the shear hole (up to 12.7mm diameter) Handle Locking Pin Blade
Marking out Tools Engineers Square Ball Pein Hammer When marking out the blade you used the following tools Centre Punch Scriber Dividers Rule Odd Leg Callipers
Machine Vice Drilling Metals Remember always wear goggles when using the drill. Hand Vice When using a twist drill to drill metal you must always secure the work piece in a vice. For holding the handle we used a Machine Vice and to hold the blade we used a Hand Vice
Forming The Blade Raw Hide Mallet Jig The blade was formed by fixing it into a jig and beating it into shape with a Raw Hide Mallet
Counter Sink Bit The Countersink Bit was used to countersink holes for the Rivets The Countersink bit can be used in a hand drill, pillar drill or Cordless drill Countersink Bit
Riveting The Blade The Rivet Set & Snap was fixed securely in the centreof the Engineers Vice The tools used to rivet the blade were the Rivet Set & Snap and a Ball Pein Hammer Rivets are available in a wide range of shapes, sizes, and Materials
Riveting The Blade Stage 1 Drill Front hole right through Stage 2 Countersink Underside Stage 3 Fit Blade
Riveting The Blade Rivet Set & Snap Stage 5 Fit Front Rivet Stage 6 Seat Rivet head on Rivet Set & Snap Stage 7 Form Rivet Stage 4 Fit Rivet Set & Snap In Vice
Riveting The Blade Stage 8: Repeat process for next rivet
Dip Coating the Handle To Dip coat the handle we heated the trowel in the oven then dipped the hot trowel into the Fluidising tank. The plastic powder then adhered to the handle of the trowel The picture above shows some examples of products that have been Dip Coated in plastic.