Neway Precision Works Ltd R&D Team

Gravity casting, also known as permanent mold casting, can be ideal for manufacturing metal components for specific applications. This article will examine when gravity casting is the optimal choice over other casting methods or machining processes to meet project requirements. Critical factors like part geometry, production quantities, material options, quality needs, lead time, and cost will be analyzed. What is Gravity Casting? Gravity casting relies on the force of gravity to fill metal molds positioned below a pouring basin. Once the mold cavity is filled, the liquid metal solidifies into the desired shape. The mold remains stationary during the pouring and solidification process with no applied pressure. The critical advantage of gravity casting is its use of reusable metal molds, typically made from cast iron, steel, or aluminum alloys. It enables repeatable production of consistently dimensioned castings with good surface finish at a relatively low cost. Simple castings may onl

 Precision casting service refers to a group of metal casting processes capable of producing dimensionally accurate metal parts with tighter tolerances and better surface finishes than conventional casting methods. The tolerance standards achieved depend on the specific casting process used. This article mainly discusses the tolerance standards of precision casting services that Neway can provide and can be achieved, including die casting, sand casting, and investment casting. Investment Casting Tolerance Standards Investment casting service is considered one of the most precise casting processes, capable of tight tolerances down to ±0.005 in (±0.13mm) or even tighter for small castings under four in2. For larger castings, the typical tolerance range is ±0.015 in (±0.38mm) or ±0.5% to ±1% of the nominal dimension. The wax pattern used in investment casting can be formed to exact dimensions, creating an accurate mold cavity in the ceramic shell. The ceramic shell withstands the forces

  A brief overview of die casting Die casting is a metal casting process that uses reusable molds called dies to produce accurately shaped metal parts at high volumes. In the die-cast process, the mold is made from tool steel and has two halves. The molten metal, usually a non-ferrous alloy, is injected into the die under high pressure and held until it solidifies.  The die-cast zinc process is characterized by its speed, high productivity, and ability to make complex shapes with good dimensional accuracy and smooth surfaces. Parts made by die-casting aluminum include automotive components like pedals, steering columns, and wheels. Other applications include housing for power tools, appliances, toys, and industrial machinery parts. Die-casting companies often employ this efficient manufacturing method ideal for high-volume production because the molds can be reused often. It produces components with closer tolerances and lower porosity than other casting techniques. The main advantage