Powder metallurgy mold design and production

Powder metallurgy mold is a specific shape, through a certain way to make the raw material powder formed; It is an important process equipment for the production of various mechanical parts and obtaining various new materials. Powder metallurgy products mold as far as possible to choose more wear-resistant and high toughness, high strength and cheap materials to improve the use of mold cost-effective.

 

Powder metallurgy mold design steps

  1. Formulate the product process according to the shape, size and strength requirements of powder metallurgy products.
  2.  Calculate and design the machines and forming structures required for forming and shaping.
  3.  According to the product material requirements, select the forming raw materials.
  4.  Design the mold structure and size according to the changing rate of raw materials and the allowance for shaping and cutting.
  5.   Draw the assembly drawing according to the forming method.
  6.   Draw the mold parts drawings.
  7. Design the measuring and fitting fixture.

The basic requirements of powder metallurgy mold design

Correct design, give full play to the powder metallurgy “less, no cutting” process characteristics

  1. Obtain the same or similar geometric shape with the part after forming
  2. Ensure the dimensional accuracy and surface roughness of the compact
  3. Ensure uniform distribution of compact density

Rationally design the mold structure and optimize the mold material

  1. Easy to install, adjust and maintain
  2. Safe and reliable, convenient processing
  3. Molds for mass production are as automated and standardized as possible
  4. Mold parts have sufficient strength, stiffness, hardness and high service life

Reduce powder metallurgy mold costs

Powder metallurgy mold material -PM high speed steel

brand Heat treatment hardness Material characteristics Scope of use
V4 quench HRC58~60 Powdered high speed steel. Excellent combination of toughness and wear resistance. Especially suitable for adhesive wear. Up-and-down punching, especially for long parts and warm and pressed parts
3V quench HRC61~63 American CPM powder steel, super dimensional stability, grindability and toughness, instead of high alloy steel, can solve the “crack” problem Forming up and down punching, especially hot pressing die punching
9V quench HRC57-59 American CPM powder steel, super dimensional stability, grindability, toughness is higher than 3V Can solve the problem of “collapsing Angle”, spiral teeth punch, warm pressure die punching
MH85 quench HRC58~60 Datong high speed steel, high wear resistance and high toughness Tooth shape under the punch forced material, temperature and pressure is not available
ASP23 quench HRC61~63 PM high speed tool steel with fine grain, good heat treatment stability, high wear resistance and high toughness Forming up and down punch, mandrel, suitable for temperature and pressure
ASP60 quench HRC66~69 ASP23 improved, replace the collapsible Angle of WC, high wear resistance and toughness Suitable for helical gear or step mold (with 40Cr)
WC HRA91YG6

HRA89YG8

HRA87YG15

G represents cobalt content, the higher the toughness, the better, the wear resistance is poor, generally using ultrafine particles Middle die and mandrel

Heat treatment process of powder metallurgy die materials

brand hardness Heat treatment temperature Holding time Tempering time/temperature/cooling method
SLD HRC57~59

HRC60~61

1030 125 minutes 3小时220/160风
V4 HRC56~57

HRC60~61

1130 125 minutes 3 Hours220/160
SKH9 HRC57~59

HRC60~61

1190 35 minutes 3 Hours 605/580
Cr12 HRC45~50 960 100 minutes 3 Hours 530
40Cr HRC45~50 860 100 minutes 3 Hours 450

Future development of powder metallurgy tooling

  • Powder metallurgy industry, mold technology should start from the following aspects:
  • Standardized and specialized production
  • Develop high precision, high efficiency and high life mold
  • Develop new type of die steel; Develop a variety of high-efficiency precision CNC machine tools; Develop and apply computer aided design and aided manufacturing technology.
  • Improve mold design quality and efficiency; Improve manufacturing precision and shorten manufacturing cycle.

 

Can you sign our NDA before we provide sensitive project information?

Yes, this is a routine operation for most companies before making an inquiry.

Do you provide proofing services?

We have metal 3D printing equipment and can provide sample 3D printing.

Why do I need to provide 2D (PDF) and 3D (STEP) drawings during inquiry?

3D drawings allow engineers to better understand the structure of the product, and 2D documents can provide more information, including materials, tolerances, surface treatment, etc. More detailed information is conducive to more accurate quotation by engineers.

How long does it take to get a quote after sending an inquiry?

In the case of detailed inquiry drawings and information, it usually only takes 2-3 days for us to give you a detailed quotation, including product price and mold price.

What preparations need to be made before confirming production?

After confirming the order, we usually take 5-7 days to prepare the DFM report of the product. After confirmation, we spend 25 days to complete the mold, and provide T1 samples to customers for testing in the following 10-15 days.

If there is a problem with the test, we will re-sample it for free based on the feedback and provide a suitable sample.

What is the MOQ?

MIM products MOQ 2000 PCS

CNC products MOQ 2000 PCS

Alu die casting,  MOQ 2000 PCS

PM product MOQ 5000 PCS

JH MIM lead time?

Typically, the lead time for processing and submitting samples is 30 days. However, according to the order quantity and special requirements of customers, we can extend or shorten the delivery cycle accordingly.

How to ensure quality?

1-year product warranty

World-class testing equipment

30+QC Workers

Key sizes 100% checking before shipment

ISO9001+IATF16949

What is the payment method for JH MIM orders?

Usually T/T is used as the payment method

Mold: 50% deposit, 50% payment after confirming the sample.

Bulk production: 30% deposit, 30% see bill of lading Copy, pay 70% balance.

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