TOLERANCE STACKUP ANALYSIS TRAINING

INTRODUCTION FOR  TOLERANCE STACKUP ANALYSIS TRAINING

Tolerance Stack is a study of dimensional relationships within a part or assembly. When a designer or engineer calculates a Tolerance Stack, he or she is calculating the maximum or minimum of: tolerance stackup analysis training

1. Part tolerances
2. Part wall thicknesses
3. Part travel
4. Space available for a part

Allocating tolerances that meets assembly build, performance, process capability and least-cost requirements have always been a challenge for the manufacturing industry. G D & T incorporation in any company is never complete without the understanding and Implementation of Tolerance Stacks as a part of the design process.

COURSE OBJECTIVES

• • Problem solving with underlying mathematical models and assumptions
  • Advantages of each approach along with limitations are clearly explained
  • Unique approach from design perspective for developing G D & T based drawings
  • Estimation of PPM at design stage

COURSE CONTENTS

1. Introduction to Tolerance Analysis

• Why TA is important?
• Two major types of TA

2. The Tolerance Stackup sketch

• Three things required for a Tolerance Stackup sketch
• Conversion of Tolerances to Equi- Bi- lateral Tolerancing
• Tolerance Stackup report

3. Worst case Tolerance Stackup

• Step by step calculation
• When to use worst case TA?
• Assumptions in Tolerance Stackup

4. Statistical Tolerance Analysis RSS

• When to use statistical TA?
• Root sum square (RSS)
• Monte Carlo method

5. Stacks using coordinate dimensions

6. Stacks using runout & concentricity

7. Stacks using profile

8. Stacks using position

9. Stacks using form controls

10. Stacks using orientation controls

11. Understanding Process Capability

12. Common mistakes in Tolerance Analysis Practice