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Examples of symbols, dimensions, and informational callouts on a engineering drawing for machining
Examples of symbols, dimensions, and informational callouts on a engineering drawing for machining

Engineering Drawings for Machining

Engineering Drawings for Machining introduces the fundamental components and terminology used in reading engineering drawings used for machining processes. Ready to take the next step? Explore the course details and see everything we’ve packed into this program!

Learning Hours: 3

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Course Description

Engineering Drawings for Machining introduces the fundamental components and terminology used in reading engineering drawings used for machining processes. Presented in THORS’ highly visual and interactive learning format with many examples, this course assists employees in understanding and interpreting the information communicated on engineering drawings for machining.

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Who will benefit from this Engineering Drawings for Machining course?

Engineering, manufacturing, quality, and purchasing personnel within any organization that produces parts using an engineering drawing.

Course Classification

This manufacturing course by THORS eLearning Solutions covers application of the included topics.

*THORS uses the Bloom’s Taxonomy Methodology for our course development.

Certificate Awarded for Engineering Drawings for Machining

Example of certificate awarded upon successful completion of the course.

*upon successful completion

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Learning Objectives

  1. Recognize aspects of engineering drawings that are unique to machining drawings.
  2. Recognize and understand the importance of symbols that appear on, and are often exclusive to, machining drawings.
  3. Understand the basic concepts of size and weight information, tolerance, and surface finish as they pertain to machining and the information present on an engineering drawing for machining.
  4. Recognize and understand commonly machined features, the associated symbols, and how the information is conveyed on an engineering drawing for machining.
  5. Recognize and understand the components of callouts for surface finish, hole features, and threaded features.
  6. Understand the importance of the notes section of machining drawings and the different types of notes that may be found in this section.
Example hole dimensioning callout on an engineering drawing for machining
Engineering Drawings for Machining

Table of Contents

  1. Distinct Characteristics
    1. Information in the Title Block
      1. Material Information
      2. Size and Weight Information
        1. Size Information
        2. Weight Information
      3. Tolerance
    2. Surface Finish
      1. Surface Finish Parameters
      2. Surface Finish Symbols
      3. Surface Finish Representation
  2. Symbols for Surface Features
    1. Chamfer
    2. Fillet and Corner
    3. Polygonal Feature
      1. Across Flats
      2. Across Corners
    4. Groove
    5. Keyway and Keyseat
    6. Slot
    7. Taper
    8. Knurled Surface
  3. Symbols for Hole Features
    1. Type of Hole
    2. Hole Callout
    3. Hole Feature Symbol
      1. Countersink
      2. Counterbore
      3. Spotface
      4. Additional Hole Process Terms
    4. Hole Location Dimensioning
      1. Rectangular Coordinate Dimensioning
      2. Polar Coordinate Dimensioning
      3. Bolt Circle Diameter
    5. Threaded Features
      1. Thread Types
        1. Internal Threads
        2. External Threads
      2. Thread Series Callout
        1. Thread Diameter
        2. Threads Per Inch or Thread Pitch
        3. Thread Size
        4. Thread Class
        5. Hand of Thread
  4. Notes
    1. Material and Treatment Notes
      1. Material Requirement
      2. Surface Treatment
        1. Heat Treatment
        2. Plating
    2. Quality Notes
      1. Burr Removal Requirements
      2. Inspection Requirements
      3. Leak Requirements
      4. Machining Allowance Requirements
      5. Machining Practices
      6. Part Cleanliness Requirements
      7. Preservation Requirements
      8. Standards Requirements
      9. Visual Quality Requirements

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