Cold rolling precision forming of shaft parts : theory and technologies / Jianli Song, Zhiqi Liu, Yongtang Li

Preface; Contents; Introduction; Abstract; 1 General Introduction; Abstract; 1.1 Introduction of the Cold Rolling Precision Forming Technology; 1.2 Present Situation of Shaft Part Manufacturing Technology; 1.2.1 Cutting of the Spline Shafts; 1.2.1.1 Cutting with Formed Cutter; 1.2.1.2 Generating Cutting Method; 1.2.2 Plastic Forming of Spline Shafts; 1.2.2.1 Cold Extrusion Forming of the Spline Shafts; 1.2.2.2 Cold Rolling Forming of Spline Shafts; 1.2.2.3 Striking Rolling of the Spline Shafts; 1.2.2.4 Cold Rolling Forming of Spline Shafts with Rack Dies

1.2.2.5 Cold Rolling Forming of Spline Shafts1.2.3 Manufacturing Methods of Thread Components; 1.3 Research Progress on the Cold Rolling Precision Forming Technology of Shaft Parts; 1.3.1 The State of the Art on the Manufacturing of Spline Shafts; 1.3.2 Theoretical Researches on the Cold Rolling Forming of Spline Shafts; 1.3.3 Surface Modification of the Cold Rolling Forming Spline Shafts; 1.3.4 Development Status on Cold Rolling Forming of Threads; 1.4 Development Trends on Cold Rolling Precision Forming Technology of Shaft Parts; References

2 Principle and Mechanical Analysis on the Cold Rolling Precision Forming of SplineAbstract; 2.1 Principle and Process on the Cold Rolling Precision Forming of Spline Shafts; 2.2 Mechanical Analysis; 2.3 Analysis on the Cold Rolling Forming Process of the Spline Tooth; 2.3.1 Indexing and Biting Conditions [6]; 2.3.2 Rotating Conditions; 2.3.3 Geometrical Indexing Conditions; 2.4 Double-Flank Non-backlash Meshing; 2.4.1 Contact Area in the Forming Process; 2.4.2 Position of the Contact Points; 2.4.2.1 Position of the Contact Point on the Bilateral Tooth Surfaces of the Spline

2.4.2.2 The Position Parameters of the Contact Point on the Rollers2.5 Sliding of the Contact Point; 2.5.1 Sliding Motion of the Contact Point on the Active Tooth Flank; 2.5.2 Sliding Motion of the Contact Point on the Driven Tooth Flank; 2.5.3 Metal Flow on the Tooth Surface of the Workpiece; 2.6 Mechanical Analysis on the Cold Rolling Precision Forming of Spline; 2.6.1 Basic Assumption of the Stress Analysis; 2.6.2 Fundamental Plastic Forming Theory of Stress Analysis; 2.6.2.1 Fundamental Equation of the Plane Strain; 2.6.2.2 Yield Criteria; 2.6.2.3 The Strengthening Model

2.6.2.4 The Slip-Line Stress Field Theory2.6.3 Slip-Line Field and Stress Analysis in the Initial Rolling Stage; 2.6.4 Slip-Line Field and Stress Analysis in the Stable Rolling Stage; 2.7 Average Pressure on the Contact Surface During the Forming Process; References; 3 Process Parameters in the Cold Rolling Forming of Spline; Abstract; 3.1 Contact Area in the Cold Rolling Forming of Spline Shafts; 3.1.1 Calculation Model; 3.1.2 Tooth Profile Equation of the Roller and the Workpiece in the Forming Process; 3.1.2.1 Tooth Profile of the Roller; 3.1.2.2 Tooth Profile of the Workpiece