||Diecasting is a cost-effective, high volume manufacturing process,
with machines that can run at high speeds. Tool (die) life is long, especially
for zinc and magnesium, with many projects never requiring replacement tooling.
A single diecasting can often replace an assembly of several separate parts.
Costly machining requirements are often eliminated.
||Parts are usually produced 'net shape'. This results in closer tolerances
than many other manufacturing processes, including those for complex geometries, holes
and threads. Frequently, consolidation of additional features eliminates assembly
operations. Where machining is required, the machining allowance can be as
low as 0.25mm.
||Consistent quality is achieved over high volumes with excellent
dimensional accuracy and stability. Tight tolerances are achieved 'as cast'
and minimal draft angles are required.
||Diecasting alloys are durable, have good strength and hardness and exhibit high
electrical and thermal conductivity. They may be cast with thin walls and textures
ranging from smooth to coarse. Diecastings can be produced with thinner walls
than those obtainable by other casting methods and are much stronger and stiffer
than plastic injection moldings with the same dimensions.
||Diecastings offer good corrosion resistance with good finishing
characteristics, excellent EMI shielding properties and full recyclability.
|Plastics are cheaper
||Where strength, product life, EMI shielding and recyclability are issues,
diecast products are frequently more cost effective due to the extra reinforcement
and other operations required for plastics.
|High tooling cost
||Relatively low cost and with longer tool life, state-of-the-art technologies can significantly reduce the impact of tooling on the component cost.
|Only for non-load bearing applications
||Attention to the detail in component and casting design, along with state-of-the-art
process control, results in castings which can be used in load bearing applications.
|Pressure diecastings cannot be plated
||Advances in diecasting technology have produced diecastings which can
be plated or coated, giving a very high standard of decorative finish comparable
||Faster production, stiffer, stronger, higher strength-to-weight ratio,
dimensionally stable (even under load), heat resistant, EMI shielding, no
UV degradation, electrically conductive, fully recyclable.
||May be more costly, only one color 'as cast'.
||Faster production (more economical for large quantities), less machining,
more accurate, more intricate geometry.
||Weaker mechanical properties, more expensive tooling.
||Faster production, tighter tolerances, thinner walls, more complex shapes.
||Restricted to non-ferrous alloys, weaker mechanical properties.
||Tighter tolerances, wall thickness variation, more complex shapes, fewer
parts & assembly operations
||Not in steel, no wrought metal properties, often more expensive tooling