Neway Precision Works Ltd R&D Team

 Selecting the most suitable investment casting process for your cast parts and projects can significantly reduce manufacturing costs. Here we mainly analyze the casting process selection of specific parts from three angles: Typical Precision Casting Process The precision casting process is a sophisticated and intricate manufacturing process employed by industries like yours, where precision and quality are paramount. It encompasses several techniques tailored to produce intricate, high-quality metal components. Among the most prominent methods are die casting, investment casting, sand casting, and gravity casting. Let's delve into the description of each process: Die Casting Die casting is a high-speed, high-pressure process involving injecting molten metal into a reusable steel mold, also known as a die. This process is particularly suited for the mass production of complex, detailed, and dimensionally accurate parts. The die is divided into two halves: the fixed half, the cover...

 Sand cores are a crucial component in the sand casting process . They create internal cavities and detailed features within metal castings that cannot be generated using only a two-piece mold. The core forms negative space within the casting that would otherwise be impossible. Sand cores achieve this by placing temporary placeholders of bonded sand into the mold cavity, which displace liquid metal when the mold is poured. This sand is later removed through a designed opening in the casting, leaving behind hollow internal geometry. Core Properties Sand cores must satisfy several essential requirements: - Permeability - The core sand needs sufficient venting to allow gases to escape during molten metal pouring. It prevents gas defects. - Collapsibility - Following solidification, the sand core must be removable from the casting through physical collapse or dissolution using water or other agents. - Refractoriness - Heat resistance is required so the core does not melt, fuse or chemi...

 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 fo...