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Position: Chinese Standard in English/GB/T 29548-2024
GB/T 29548-2024   High speed precision straight side press—Testing of the accuracy (English Version)
Standard No.: GB/T 29548-2024 Status:valid remind me the status change

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Language:English File Format:PDF
Word Count: 9000 words Price(USD):270.0 remind me the price change

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Implemented on:2025-4-1 Delivery: via email in 1~3 business day
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Standard No.: GB/T 29548-2024
English Name: High speed precision straight side press—Testing of the accuracy
Chinese Name: 闭式高速精密压力机 精度
Chinese Classification: J62    Metal forming machinery
Professional Classification: GB    National Standard
ICS Classification: 25.120.10 25.120.10    Forging equipment. Presses. Shears 25.120.10
Issued by: SAMR, SAC
Issued on: 2024-09-29
Implemented on: 2025-4-1
Status: valid
Superseding:GB/T 29548-2013 High speed precision straight side press—Testing of the accuracy
Language: English
File Format: PDF
Word Count: 9000 words
Price(USD): 270.0
Delivery: via email in 1~3 business day
GB/T 29548-2024 High speed precision straight side press – Testing of the accuracy 1 Scope This document specifies the accuracy class and inspection requirements of high speed precision straight side presses, and describes the accuracy inspection methods. This document is applicable to high speed precision straight side presses. 2 Normative references The following documents contain requirements which, through reference in this text, constitute provisions of this document. For dated references, only the edition cited applies. For undated references, the latest edition (including any amendments) applies. GB/T 8170 Rules of rounding off for numerical values & expression and judgment of limiting values GB/T 10923 Test code of accuracy for metal forming machine GB/T 35091 Straight-sided high-speed mechanical power presses - Types and basic parameters 3 Terms and definitions For the purposes of this document, the terms and definitions given in GB/T 35091 and the following apply. 3.1 accuracy and repeatability at bottom dead center tolerance of the change of the bottom dead center position of the slider during the operation of the high speed precision straight side press 3.2 temperature increase and speed increase process in which the high speed precision straight side press runs in an accelerated mode from the initial state and accelerates to the maximum rated speed of the press within a certain period of time 3.3 temperature increase and speed unchange process of adjusting the speed of a high speed precision straight side press from the end of the temperature increase and speed increase test to 80% of the rated maximum speed, and running at a constant speed at that speed 3.4 temperature unchange and speed unchange process of a high speed precision straight side press reaching thermal equilibrium through constant speed operation and running at 80% of the rated maximum speed at a constant speed 3.5 initial state state where the shutdown time of the high speed precision straight side press exceeds 10 hours 4 Accuracy class 4.1 The accuracy of high speed precision straight side presses (hereinafter referred to as presses) is divided into two classes: precise and ultra-precise. Examples of the uses of each accuracy class are shown in Table 1. Table 1 Class Examples of uses Precise Used for high-speed stamping of precision parts such as motor cores, E/1 iron cores and lead frames with general accuracy requirements Ultra-precise Used for high-precision blanking of ultra-thin materials, high-speed stamping of ultra-precision parts such as high-efficiency micro-motor core and precision lead frame 4.2 If the class is not indicated, the inspection shall be carried out according to the requirements of precision class.
Contents Foreword i 1 Scope 2 Normative references 3 Terms and definitions 4 Accuracy class 5 Inspection requirements 6 Accuracy inspection Annex A (Normative) Inspection method of the accuracy and repeatability at bottom dead center
Referred in GB/T 29548-2024:
*GB/T 8170-2008 Rules of rounding off for numerical values & expression and judgement of limiting values
*GB/T 10923-2009 Test code of accuracy for metalforming machine
*GB/T 35091-2018 Straight-sided high-speed mechanical power presses--Types and basic parameters
Code of China
Standard
GB/T 29548-2024  High speed precision straight side press—Testing of the accuracy (English Version)
Standard No.GB/T 29548-2024
Statusvalid
LanguageEnglish
File FormatPDF
Word Count9000 words
Price(USD)270.0
Implemented on2025-4-1
Deliveryvia email in 1~3 business day
Detail of GB/T 29548-2024
Standard No.
GB/T 29548-2024
English Name
High speed precision straight side press—Testing of the accuracy
Chinese Name
闭式高速精密压力机 精度
Chinese Classification
J62
Professional Classification
GB
ICS Classification
Issued by
SAMR, SAC
Issued on
2024-09-29
Implemented on
2025-4-1
Status
valid
Superseded by
Superseded on
Abolished on
Superseding
GB/T 29548-2013 High speed precision straight side press—Testing of the accuracy
Language
English
File Format
PDF
Word Count
9000 words
Price(USD)
270.0
Keywords
GB/T 29548-2024, GB 29548-2024, GBT 29548-2024, GB/T29548-2024, GB/T 29548, GB/T29548, GB29548-2024, GB 29548, GB29548, GBT29548-2024, GBT 29548, GBT29548
Introduction of GB/T 29548-2024
GB/T 29548-2024 High speed precision straight side press – Testing of the accuracy 1 Scope This document specifies the accuracy class and inspection requirements of high speed precision straight side presses, and describes the accuracy inspection methods. This document is applicable to high speed precision straight side presses. 2 Normative references The following documents contain requirements which, through reference in this text, constitute provisions of this document. For dated references, only the edition cited applies. For undated references, the latest edition (including any amendments) applies. GB/T 8170 Rules of rounding off for numerical values & expression and judgment of limiting values GB/T 10923 Test code of accuracy for metal forming machine GB/T 35091 Straight-sided high-speed mechanical power presses - Types and basic parameters 3 Terms and definitions For the purposes of this document, the terms and definitions given in GB/T 35091 and the following apply. 3.1 accuracy and repeatability at bottom dead center tolerance of the change of the bottom dead center position of the slider during the operation of the high speed precision straight side press 3.2 temperature increase and speed increase process in which the high speed precision straight side press runs in an accelerated mode from the initial state and accelerates to the maximum rated speed of the press within a certain period of time 3.3 temperature increase and speed unchange process of adjusting the speed of a high speed precision straight side press from the end of the temperature increase and speed increase test to 80% of the rated maximum speed, and running at a constant speed at that speed 3.4 temperature unchange and speed unchange process of a high speed precision straight side press reaching thermal equilibrium through constant speed operation and running at 80% of the rated maximum speed at a constant speed 3.5 initial state state where the shutdown time of the high speed precision straight side press exceeds 10 hours 4 Accuracy class 4.1 The accuracy of high speed precision straight side presses (hereinafter referred to as presses) is divided into two classes: precise and ultra-precise. Examples of the uses of each accuracy class are shown in Table 1. Table 1 Class Examples of uses Precise Used for high-speed stamping of precision parts such as motor cores, E/1 iron cores and lead frames with general accuracy requirements Ultra-precise Used for high-precision blanking of ultra-thin materials, high-speed stamping of ultra-precision parts such as high-efficiency micro-motor core and precision lead frame 4.2 If the class is not indicated, the inspection shall be carried out according to the requirements of precision class.
Contents of GB/T 29548-2024
Contents Foreword i 1 Scope 2 Normative references 3 Terms and definitions 4 Accuracy class 5 Inspection requirements 6 Accuracy inspection Annex A (Normative) Inspection method of the accuracy and repeatability at bottom dead center
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