GB/T 43479-2023Metal spinning formability and test methods - Formability, formability indexes and general test code of practice (English PDF)

1 Scope

This document stipulates the forming performance and forming indicators of room temperature spin forming of metal materials, and describes the general operating steps for performance testing:

Steps include sample preparation, test wheel, mandrel and tail top preparation, test auxiliary device and machine tool preparation, sample lubrication and cooling, pre-test, normal test

Type test, data collection and calculation, and test report:

This document is suitable for testing the spinning forming properties of metal drawing spinning, reducing diameter spinning, shear spinning and flow spinning: It is also applicable to metal spinning:

It is a test for the testing of special spinning forming properties such as reducing diameter spinning of non-axisymmetric parts and spinning of non-circular cross-section parts:

2 Normative reference documents

The contents of the following documents constitute essential provisions of this document through normative references in the text: Among them, the dated quotations

For undated referenced documents, only the version corresponding to that date applies to this document; for undated referenced documents, the latest version (including all amendments) applies to this document:

GB/T 228:1 Tensile testing of metallic materials Part 1: Room temperature test method

GB/T 8541 Forging Terminology

GB/T 38959 Specification for powerful spinning process of high-strength steel

3 Terms and definitions

The following terms and definitions as defined in GB/T 228:1, GB/T 8541 and GB/T 38959 apply to this document:

3:1

The deformation ability that a metal material can achieve without damage (defects such as wrinkling, cracking, peeling or bulging) during single-pass spinning forming, that is,

The ability of materials to be smoothly formed and meet quality requirements during spin forming:

3:2

When deep drawing spinning is formed, the minimum diameter of the spinning part that can be formed in a single pass of spinning without wrinkling or cracking is the same as the blank:

diameter ratio:

3:3 limit halfconeangle limithalfconeangle

During shear spinning forming, the bus bar and workpiece of the spinning part can be formed in a single pass of spinning without wrinkling, peeling or cracking:

The minimum angle between the axis of the piece:

3:4 limitthinningratio limitthinningratio

It can be formed without wrinkling, peeling or cracking during shear spinning: It can be formed without peeling, cracking or bulging during flow spinning:

In the case of , the ratio of the difference between the original thickness of the blank and the minimum wall thickness of the spinning part that can be formed by a single pass of spinning to the original thickness of the blank:

GB/T 41857 | GB/T 40883 | GB/T 37683 | GB/T 32151.51 | GB/T 13320 | […]