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Step in a vacuum process where a flask is placed over the pattern wrapped in film.

Vacuum Process Fundamentals

Vacuum Process Fundamentals introduces the learner to casting production by Vacuum Process Molding. Ready to take the next step? Explore the course details and see everything we’ve packed into this program!

Learning Hours: 2

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Course Description

Vacuum Process Fundamentals introduces the learner to casting production by Vacuum Process Molding. The course provides an overview of the common defects and troubleshooting guidelines. Presented in THORS’ highly visual and interactive learning format, this course will help foundry employees become familiar with the important equipment processing steps associated with their profession.

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Who will benefit from this Vacuum Process course?

Companies, individuals, or educational institutions that require an understanding of the equipment, processes, and post-processes involved in producing castings by vacuum process molding.

Course Classification

This manufacturing course by THORS eLearning Solutions covers identification of key terms and understanding of key concepts.

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

Certificate Awarded for Vacuum Process Fundamentals

Example of certificate awarded upon successful completion of the course.

*upon successful completion

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Learning Objectives

  1. Understand the life of a casting manufactured by vacuum process molding.
  2. Identify the equipment used in vacuum process molding.
  3. Learn about the design considerations for pattern and mold making.
  4. Comprehend the processes and procedures that define the vacuum process.
  5. Diagnose the casting defects manufactured by the vacuum process.
3D illustration of a rotary molding line, a common configuration of a mold line in a vacuum process foundry.
Vacuum Process Fundamentals

Table of Contents

  1. Vacuum Process Foundry
    1. Process Summary
    2. Foundry Layout
    3. Operator Safety
    4. Equipment Terminology
    5. Advantages and Disadvantages
  2. Processing Steps
    1. Pattern Making
    2. Filming the Pattern
      1. Heating
      2. Forming
      3. Coating
    3. Creating the Mold
      1. Flask Placement
      2. Flask Filling
      3. Flask Sealing
    4. Assembling the Mold
      1. Placing Cores and Inserts
        1. Accessories Placement
        2. Core Setting
    5. Pouring and Shakeout
      1. Pouring
      2. Shakeout
  3. Casting Finishing and Evaluation
    1. Casting Finishing
    2. Casting Evaluation
      1. Metallic Projections
        1. Chill Set
        2. Wash
      2. Cavities
        1. Gas Blow
      3. Discontinuities
        1. Hot tear
      4. Defective Surfaces
        1. Bump
        2. Burn-On
        3. Orange Peel
        4. Potato Chipping
        5. Shrink Porosity
        6. Wave
        7. Worm Track
      5. Incorrect Dimensions
        1. Core Set
        2. Core Knock-Out Damage
        3. Mold Swell
        4. Strip
        5. Shift
      6. Incomplete Castings
        1. Misrun
        2. Cold Shut
        3. Short Pour
      7. Inclusions
        1. Inclusion
        2. Crush
    3. Process Optimization Tips

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