Welding Blueprints and Symbols

Directions:

Fill in the blanks.

Welding Blueprints Segment

1. Blueprints

• Are ____to scale___________ drawings of a structure

– can be as _____small__________ as a single weld or as complex as a skyscraper

• Include all needed information to construct the project

2. Sketches

• Are _____free __________-hand drawings of objects or structures
• Are not to-scale and are only temporary approximations
• Differ from _____blueprints__________, or drawings, in that no measuring tools are used to create them

Take Notice: Measuring tools could include straight edges or types of squares, such as T-squares.

3. Types of Blueprints

•         Include:

• elevation drawings
• ______floor_________ plans
• isometric detail drawings
• _______multiview________ drawings

Take Notice: Blueprints can also be called drawings or plans  

4. Elevation Drawings

•         Are _______two________ dimensional drawings which show the front, side or rear of a structure

– most blueprints have _______four________ elevations included:

front, back and both sides of the structure

5. Floor Plans

• Show the _______location________ of walls, windows and all other large, built-in features in a proposed structure
• Are always from a top view
• Indicate the ________measurements_______ for all rooms and openings

6. Orthographic Detail Drawings  

• Are 2-D drawings of ________3D_______ objects  
• Are primarily represented through three different orthographic views

• top
• ______front_________ 
• right

[pic 1] 

7. Isometric Detail Drawings

• Are 3-D drawings of objects drawn at an _______angle________
• Usually include _______notes________ and specific labels to explain the drawing

8. Multiview Drawings

• Show the object or structure from _______different________ angles or views on the ______same_________ page
• Commonly show the top view, isometric view, front view and right side view of an object

9. Welding Blueprints

• Are included in normal blueprints to instruct welders in the specifics of the weld required for the structure
• Include:

• type of material to be ______welded_________  
• welding process required  
• type of weld used  
• location and ______size_________ of weld

Welding Blueprints Components Segment  

1. Parts of a Blueprint

• Are standardized to make sure the proper information is communicated
• Include:

• ______information_________ blocks
• finish marks
• notes and specifications
• ______legends_________ 
• symbols

2. Information Blocks

• Provide the reader with necessary ______information_________ about the blueprint

• information may not already be shown in the blueprint or may need more detail

• Include:  

• title block  
• revision block  
• reference number
• ______zone_________ number
• scale block  
• bill of materials  

3. The Title Block

• Contains all information needed to ______identify_________ a drawing
• Is usually located at the ______bottom_________ or lower right corner of a drawing
• Includes:  

• drawing number  
• drawing title
• name and address of organization preparing the drawing  
• scale  
• authentication  
• date  

4. The Revision Block

• Is used to identify _____revisions__________ made to a drawing
• Will include any and all revisions
• Is located in the upper ______right_________ corner of the drawing

[pic 2] 

5. The Drawing Number

• Is located in the lower _______right________ corner of the title block

– the drawing number can also be near the top of the blueprint

• Is usually formatted to _____identify__________ the page in a set of drawings – example: Page 5 of 10

6. Reference Numbers

•         Are used to direct the reader to a _______detailed________ drawing and to identify the detailed drawing

[pic 3] 

7. Zone Numbers

• Are used to direct the reader to a specific point on the blueprint, just like a ______map_________
• Coordinate to specific letters and numbers associated with

______horizontal_________ and vertical lines

• Are read left to right

[pic 4] 

8. The Scale Block

• Explains the scale of the drawing in relation to actual measurements – Example: 1” = 10’ 
• Is within the ______title_________ block

– the scale of the drawing is chosen to fit the drawing on one blueprint sheet

Scale- measurement used to describe the dimensions of an object or structure on a ratio basic

9. The Bill of Materials

• Contains detailed information on the parts, equipment and supplies needed for the project
• Is developed by considering the _______specifications________, identifying the sequence of assembly and filling in the needs of the project
• Is also known as a _______cutting________ list

10. Finish Marks

• Are used to designate _______materials________ surfaces which need a machined finish
• Are not the same as the marks which designate painting, varnishing, plating or other coatings

– Some examples include:

• C-chipping
• G-______grinding_________
• M-machining

11. Notes & Specifications

•         Are used to ______flarify_________ the drawing further

• notes are placed on the drawing and explain the graphic on the drawing
• specifications are separate documents or other forms detailing requirements or contract _______limitations________ on parts or other components of a project

[pic 5] 

12. Legends

• Are placed in the _______upper________ right corner, below the revisions block
• Define the _____symbols__________ and lines used on the blueprint

[pic 6] 

Scales of Measurement Segment

1. Scale

•         Is a method of _______measurements________ allowing dimensions on a drawing or map to be converted and applied to full size objects

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