Answer :
Dimensions and Calculations:
- Total Bolt Length: 30 mm (scaled to 60 mm)
- Thread Length: 30 mm (scaled to 60 mm)
- Hex Head Height: [tex]\(0.7 \times 10 \text{ mm} = 7 \text{ mm}\) (scaled to 14 mm)[/tex]
- Across Flats (Hex Head): 17 mm (scaled to 34 mm)
Views in First-Angle Orthographic Projection (2:1 Scale):
- Front View: Shows the side profile of the bolt with a hexagonal head (60 mm length, 14 mm head height, 34 mm across flats).
- Top View: Displays the hexagonal shape of the head (34 mm across flats).
Projection Symbol:
- Included above the views to indicate First-Angle Projection.
To create a detailed drawing of an M10 hexagonal bolt in a 2:1 scale using First-Angle Orthographic Projection, do the following:
1. Understanding the Dimensions of the M10 Bolt:
- The nominal diameter (D) of the M10 bolt is 10 mm.
- The total length of the bolt is 30 mm.
- The length of the thread is 30 mm, implying the bolt is fully threaded.
- The across flats (A/F) dimension for an M10 bolt is typically 17 mm (i.e., the distance across the flats of the hexagonal head).
- The height of the bolt head (H) can be calculated using the formula:
[tex]\[ H = 0.7 \times D \][/tex]
where D is the nominal diameter.
2. Calculating the Height of the Bolt Head:
[tex]\[ H = 0.7 \times 10 \text{ mm} = 7 \text{ mm} \][/tex]
3. Drawing Views in First-Angle Orthographic Projection:
- Front View: Shows the side profile of the bolt.
- Top View: Shows the hexagonal head.
- Side View: This may not be necessary for a bolt but would show another side profile identical to the front view.
Drawing Steps:
1. Front View:
- Draw a rectangle representing the bolt length (30 mm).
- Indicate the threaded portion as 30 mm along the length.
- Draw the hexagonal head above the threaded portion, 7 mm in height and 17 mm across flats.
2. Top View:
- Draw a hexagon with 17 mm across flats.
3. Side View:
- Draw a rectangle similar to the front view to represent the bolt’s length and the hexagonal head dimensions.
4. Projection Symbol:
- Add the First-Angle Orthographic Projection symbol to the drawing.
Drawing in Scale 2:1:
- All dimensions will be doubled.
Example Sketch: An example sketch is attached.
Detailed drawing plan to help visualize:
Front View (Scale 2:1):
- Total length: [tex]\(30 \text{ mm} \times 2 = 60 \text{ mm}\)[/tex]
- Thread length: [tex]\(30 \text{ mm} \times 2 = 60 \text{ mm}\)[/tex]
- Head height: [tex]\(7 \text{ mm} \times 2 = 14 \text{ mm}\)[/tex]
- Across flats (hex head): [tex]\(17 \text{ mm} \times 2 = 34 \text{ mm}\)[/tex]
Top View (Scale 2:1):
- Across flats of hex head: [tex]\(17 \text{ mm} \times 2 = 34 \text{ mm}\)[/tex]
The drawn sketch is attached.
The detailed drawing of the M10 hexagonal bolt in a 2:1 scale using First-Angle Orthographic Projection:
Front View (Scaled 2:1)
- Total Length: 60 mm
- Thread Length: 60 mm
- Head Height: 14 mm
- Across Flats (Hex Head): 34 mm
Top View (Scaled 2:1)
- Across Flats of Hex Head: 34 mm
First-Angle Projection Symbol
- Located above the views for clear identification.
This drawing provides a clear representation of the bolt with all the necessary views and dimensions at the specified scale.
Complete question:
Draw according to Scale 2:1 all the views of Hexagonal M 10 bolt in First-Angle Orthographic Projection.
- The total length of the bolt is 30 mm
- The length of the thread is 30 mm
- Show the calculations for the height of the bolt head
- Add the correct projection symbol
