HOME   Cart(0)   Quotation   About-Us Policy PDFs Standard-List
www.ChineseStandard.net Database: 189759 (19 Oct 2025)

GB/T 37057-2019 PDF English

US$90.00 · In stock · Download in 9 seconds
GB/T 37057-2019: Multi-way precision die forgings - Quality control criterion
Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedure
Status: Valid
Standard IDContents [version]USDSTEP2[PDF] deliveryName of Chinese StandardStatus
GB/T 37057-2019English90 Add to Cart 0-9 seconds. Auto-delivery Multi-way precision die forgings - Quality control criterion Valid

Excerpted PDFs (Download full copy in 9 seconds upon purchase)

PDF Preview: GB/T 37057-2019
      

Similar standards

GB/T 37676   GB/T 37679   GB/T 37683   GB/T 32151.51   

GB/T 37057-2019: Multi-way precision die forgings - Quality control criterion

---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT37057-2019
NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 77.140.85 J 32 Multi-way precision die forgings – Quality control criterion ISSUED ON: MARCH 25, 2019 IMPLEMENTED ON: OCTOBER 01, 2019 Issued by: State Administration for Market Regulation; Standardization Administration of the People’s Republic of China.

Table of Contents

Foreword ... 3 1 Scope ... 4 2 Normative references ... 4 3 Terms and definitions ... 4 4 Main control points and requirements ... 4 Multi-way precision die forgings – Quality control criterion

1 Scope

This Standard specifies the main control points and requirements for the production process of multi-way precision die forgings (hereinafter referred to as "forgings"), including process design, raw materials, blanking, molds, forging equipment, forging, safety and environmental protection. This Standard applies to the quality control of multi-way precision die forgings.

2 Normative references

The following documents are indispensable for the application of this document. For dated references, only the dated version applies to this document. For undated references, the latest edition (including all amendments) applies to this document. GB/T 8541, Terminology of forging and stamping GB 13318, General rules for safety and environmental conservation of forging production GB/T 33879, Mufti-way precision die forgings. General specification GB/T 35079, Mufti-way precision die forgings. Technological design principle JB/T 4318.2, Horizontal band sawing machine. Part 2: Testing of the accuracy

3 Terms and definitions

Terms and definitions determined by GB/T 8541 are applicable to this document.

4 Main control points and requirements

4.1 Process design 4.1.1 Multi-way die forging technology is generally applied to forge complex structural forgings which have inner holes and multiple branches or bosses externally. 4.1.2 Forging design shall minimize the surface machining allowance on the premise of satisfying the structural dimensions and mechanical properties of the part. The final forming part and cavity of the forging shall retain sufficient process margin; if necessary, the demander’s opinion shall be asked for the design result. 4.1.3 The process design process shall comply with the requirements that are specified in GB/T 35079; process specification (card) shall be prepared to guide the production process. The process specification (card) shall include at least the requirements and control methods for the processes such as cutting, heating, mold, forging, multi-way die-forging hydraulic machine control parameters, post-forging treatment. 4.1.4 For the process design process, numerical simulation technology should be used to optimize the process and process parameters. The forging steps should meet the requirements that are specified in GB/T 35079. 4.1.5 Each stage of the process design shall be reviewed; the design results shall also be reviewed by professionals of design, process, quality, and production; if necessary, demander’s opinion shall be asked for the design result. 4.2 Raw material 4.2.1 The raw materials shall have valid quality certification documents that are provided by the manufacturer; the chemical composition, appearance, size, mechanical properties and internal quality of the raw materials shall comply with the process requirements. 4.2.2 The raw materials shall be free of defects such as cracks, crusting, folding or inclusion on the surface. 4.2.3 After the raw materials are delivered to the factory, they shall be re- inspected by the quality inspection department. The items and requirements for re-inspection shall be implemented in accordance with GB/T 33879. 4.2.4 The raw materials shall be stored in sections according to materials, specifications, inspection status, and clearly marked. Materials and furnace batches shall be confirmed before the raw materials are shipped out, so as to prevent mixing. 4.3 Blanking 4.3.1 The raw materials should be sawed and blanked; the blanking shall meet the requirements of GB/T 35079. The precision of the sawing equipment shall meet the requirements of JB/T 4318.2. ......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.


      

Tips & Frequently Asked Questions

Question 1: How long will the true-PDF of English version of GB/T 37057-2019 be delivered?

Answer: The full copy PDF of English version of GB/T 37057-2019 can be downloaded in 9 seconds, and it will also be emailed to you in 9 seconds (double mechanisms to ensure the delivery reliably), with PDF-invoice.

Question 2: Can I share the purchased PDF of GB/T 37057-2019_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 37057-2019_English will be deemed to be sold to your employer/organization who actually paid for it, including your colleagues and your employer's intranet.

Question 3: Does the price include tax/VAT?

Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countries

Question 4: Do you accept my currency other than USD?

Answer: Yes. www.ChineseStandard.us -- GB/T 37057-2019 -- Click this link and select your country/currency to pay, the exact amount in your currency will be printed on the invoice. Full PDF will also be downloaded/emailed in 9 seconds.

How to buy and download a true PDF of English version of GB/T 37057-2019?

A step-by-step guide to download PDF of GB/T 37057-2019_EnglishStep 1: Visit website https://www.ChineseStandard.net (Pay in USD), or https://www.ChineseStandard.us (Pay in any currencies such as Euro, KRW, JPY, AUD).
Step 2: Search keyword "GB/T 37057-2019".
Step 3: Click "Add to Cart". If multiple PDFs are required, repeat steps 2 and 3 to add up to 12 PDFs to cart.
Step 4: Select payment option (Via payment agents Stripe or PayPal).
Step 5: Customize Tax Invoice -- Fill up your email etc.
Step 6: Click "Checkout".
Step 7: Make payment by credit card, PayPal, Google Pay etc. After the payment is completed and in 9 seconds, you will receive 2 emails attached with the purchased PDFs and PDF-invoice, respectively.
Step 8: Optional -- Go to download PDF.
Step 9: Optional -- Click Open/Download PDF to download PDFs and invoice.
See screenshots for above steps: Steps 1~3    Steps 4~6    Step 7    Step 8    Step 9