What is Warm Isostatic Pressing (WIP)?
Warm isostatic pressing is a manufacturing process that uses isostatic pressure up to 6000 bar to compress powdered materials into a solid form. It is similar to cold isostatic pressing, but uses a higher temperature, approximately 200ºC. This process can be used to manufacture various products, such as polymer parts, metal or ceramic parts.

Warm isostatic pressing uses a flexible material as a mold and hydraulic pressure as the pressure medium to shape and press powdered materials. Depending on the application and material, it can be water or oil. In this process, the liquid is first heated and then injected into a sealed pressing cylinder through a pressure source. The pressure of the medium within the sealed container can be uniformly transmitted in all directions, ultimately obtaining products with uniform density and excellent performance. This overcomes the shortcomings of cold isostatic pressing in shaping special materials while avoiding the extreme temperature conditions of hot isostatic pressing.
What are the advantages of Warm Isostatic Pressing?
Increased Density
Uniform heat facilitates material compaction to eliminate porosity, thereby increasing the material's density.
Specialized Applications
It is an ideal technology for materials that cannot withstand high temperatures, such as hot isostatic pressing.
Lower Consumption
It is more economical because it requires a lower temperature than hot isostatic pressing.
Mechanical Properties
Improved mechanical properties make the material more durable and long-lasting.
Application Areas of Warm Isostatic Pressing Technology
01
It is crucial in the manufacture of implants and medical devices, ensuring their biocompatibility and durability.
02
It is used to manufacture critical components requiring high strength and durability, such as engine parts and aircraft structures.
03
Batteries employ advanced energy storage technology, offering higher density, capacity, safety, lifespan, and efficiency compared to traditional batteries.
04
Assisting in the production of high-precision and high-strength parts, such as engine components and transmission systems.
05
Used in the production of components for turbines and other equipment requiring high temperature and pressure resistance.
06
It is used to produce high-strength components for military and defense equipment.
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Working conditions of Warm Isostatic Pressing
Temperature Range
Standard operating temperature: 80~160℃; up to 180℃ in special applications (requires specialized pressure transmission medium and sheathing material).
Pressure Rating
Typically around 300~600MPa, significantly higher than conventional pressure pressing processes, ensuring thorough densification of powder particles.
Pressure Transmission Medium
Primarily special liquids (such as high-temperature fire-resistant oil, specialized hydraulic fluid), requiring both pressure transmission efficiency and high-temperature stability.
Sheathing Material
Mostly elastic plastics, rubber, or high-temperature resistant polymers, requiring sealing performance and a certain degree of deformation capacity to prevent reaction with the material.
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