Squeeze casting is a process where high mechanical pressure is applied to liquid (or semi-solid) metal flowing slowly into a squeeze mold/die cavity. This enables the metal to form, solidify, and undergo plastic deformation under pressureto produce dense, high-performance castings.
It is classified by:
Pressure direction: Divided into direct squeeze casting (pressure applied directly to the melt) and indirect squeeze casting (pressure transmitted via the melt pool) (Fig. 8-15).
Mold orientation: Categorized into vertical squeeze casting (vertical injection + vertical parting) and horizontal squeeze casting (vertical injection + horizontal parting) (Fig. 2).
Fig. 2
It aligns with the automotive lightweighting trend of “aluminum-for-steel” and “casting-for-forging”, combining casting’s high efficiency/low costwith forging’s superior mechanical properties.
More Precise Products & Superior Mechanical Properties
Vertical injection minimizes air entrapment and porosity, enhancing density and precision. The small shot sleeve aspect ratio reduces heat loss and cold shuts, improving yield. High-pressure solidification yields finer grains and a denser microstructure—outperforming die casting in mechanical properties, with overall performance close to forging.
Higher Dimensional Accuracy & Clearer Contours
High pressure ensures tight tolerances and smooth part geometries.
Faster Production & Lower Costs
Automated squeeze/hydraulic presses boost efficiency. Mass production cuts costs, with a typical cycle time of 1–3 minutes.
Energy Efficiency & Reduced Post-Processing
Eliminates waste from gating systems and minimizes secondary machining, lowering expenses.
Wider Material Compatibility
Suitable for non-ferrous alloys, ferrous metals, and metal matrix composites (MMCs).
Product Quality Stability Needs Improvement
As a newer process with limited historical research, some manufacturers still face consistency challenges during exploration.
High Initial Investment
Costs for squeeze equipment, mold design, alloy selection, and release agents are substantial.
Process Refinement Required
Testing issues demand holistic analysis (e.g., process parameters, upstream materials)—cannot rely solely on changing raw materials.
Immature Upstream Auxiliary Materials
Key materials (e.g., alloys, release agents) still need optimization:
Common water-based die casting release agents fail at prolonged high temperatures, causing sticking/carbon buildup.
Graphite release agents emit toxic smoke and are hard to clean (non-compliant with environmental rules).
Powdered water-based release agents (e.g., Kemi’s squeeze casting release agents) solve this: they offer high-temperature resistance, strong release force, and safe/clean operation—improving workshop hygiene and part density while reducing sticking/yellowing/cold shuts.
Unsuitable for Thin-Walled Parts
Best for thick-walled castings (3–40 mm); poor performance with thin sections.
For more information about Advantages and Disadvantages of Squeeze Casting or die-casting auxiliary materials, and if you need customized die-casting release agent, please contact 15021483232 (same as Wechat)