PQ²: Machine Power and Die Compatibility

In order to maximize the quality of a part produced on a die casting machine setup, the die caster must understand and optimize the machine and die setup. The goal of PQ2 is to predict how a given die will operate when mounted on a machine with known performance.

Whether planning for a new part or maximizing quality on an existing part, this new volume presents a step-by-step process that will allow even the beginning designer to construct a PQ2 diagram and use it to make decisions regarding gating, shot speeds and shot pressures. The designer will be able to create a die/process design that will match the casting quality requirements.

Item #E-700, 36 pages, 1998.

TABLE OF CONTENTS

Introduction
The Generic PQ2  Diagram
Chapter 1 The Shot End
Chapter 2 Gating
Chapter 3 Atomized Flow
Chapter 4 Scientific Principles
Chapter 5 Step by Step PQ2
          Building the Graph
          Machine Line Iterations
          Theoretical Fill Rate
          Metal Pressure
          The Process Window
          Die Line
Summary
Worked Examples
References
Appendices
          I Tables for Calculations
          II Symbols and Conversion Factors
          III Die Casting Formulas