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Engineering

DESIGN

 
Whether you are new to designing die castings (or an old hand at the business), or interested in converting a part (or assembly of parts) made using another process into a die casting,you may benefit from our suggestions on how to improve a part's quality or cost.LANGOZ is able to provide design assistance to help you understand the basics of die casting,convert a part to die cast from another process,or make the detailed tweaks necessary to reach your target price,or hold pressure tightness specification.
 
The following Technical Resources may also provide valuable information for designing your part.
 
NADCA Geometric Dimensioning and Tolerances Guidelines (PDF)
Aluminum, Magnesium, and Zinc Alloy data (PDF)
NADCA Tolerances Guidelines (PDF)
Die Casting Glossary (PDF)
 
 
PROTOTYPES
 
LANGOZ provides die cast aluminum,zinc and magnesium prototypes
 
LANGOZ can take your solid model and supply a short run of die cast prototypes in little as 4 weeks, or sometimes less.
 
If you need die-cast style parts on a shorter timeframe,LANGOZ has a broad source base for numerous prototype methods,and can supply metal prototype parts within a few weeks.
 
 
Dedicated Mold Bases
 
LANGOZ casts prototype parts and some low-volume production work in dedicated mold bases.This reduces tooling lead time because it is not necessary to build a whole die cast tool – only the cavity blocks (or “inserts”) that fit into the mold base.
 
Rapid Inserts*
 
Traditionally, the detailed shape of a die cast cavity block is created by spark erosion using shaped electrodes in an Electric Discharge Machine.This is a time-consuming process. Advancements in recent years have allowed more and more cavity blocks to be cut efficiently with high-speed CNC machining,and cuts time from prototype projects.
 
* This method of high speed machining applies to both Pre-Hard inserts and Hardened inserts (listed below):
 
Pre-Hard Tool Steel
 
To achieve a long life (in the 100,000 shot range),die cast cavity blocks are heat treated and brought to a high hardness. Heat treating and the cavity preparation necessary after heat treat consume significant time. Where prototype needs are generally for smaller quantities (up to a few thousand), it is possible to use pre-hard (non-heat treated) tool steel to cut down lead time and cost.
 
Hardened Tool Steel
 
If a prototype project might turn into a production-volume project, it sometimes pays to build hardened cavity blocks. With design considerations these can then be re-used after the prototype run is over and put into the production tool.
 
 
 
DESIGN & SOFTWARE CAPABILITIES
 
Part Modeling and CAM Software
 
LANGOZ uses the latest versions of SolidWorks (preferred), Pro/E, and KeyCreator for part and tool modeling.LANGOZ also uses Gibbs CAM software to assist in CNC machine programming.
 
Cast Simulation Software
 
LANGOZ uses the SIMTEC cast simulation software. SIMTEC is a Finite Element Method (FEM) analysis tool that can simulate metal flow, temperature, cooling, residual stress, and part distortion. LANGOZ uses this information to enhance part and tool designs.
 
Metal Flow
 
SIMTEC stimulates liquid metal flow from the beginning to the end of a shot, allowing LANGOZ to determine the best point to inject molten metal into a die,ensuring you receive finished parts with the best density and structural features possible.
 
 
Temperature/Cooling
 
Temperature control and even cooling can have big impacts on casting quality. LANGOZ does temperature simulations to identify hot or cold spots and assist in the design of a tool's water and hot oil systems
 
 
Stress/Distortion
 
Some part designs are prone to distortion during solidification and shrink - in fact, shrink distortion in the primary factor that limits the dimensional accuracy of a die casting, and sets the lower bound on industries precision tolerances.Our simulation software allows us to predict the extent of this distortion on any given product.Armed with this data,LANGOZ has intentionally built cavities to an inversely distorted shape, in order to compensate for the expected shrink distortion. This has allowed us to achieve tolerances considerably tighter than industries precision - without the need for a re-cut.
 
 
TOOLING
 
LANGOZ has a reputation for innovative tooling solutions.We run multiple-cavity die cast dies (molds), and are willing to undertake more complex shapes.Our domestic and global die cast tooling partnerships allow us to satisfy our customers; whether cost, tool life,or timing is the most important factor in purchasing tooling.
 
We cooperate with a variety of tool manufacturing to source our tooling in Dongguan,China.and in dongguan,you will find any advanced equipment here.
 
FAQ: What is Die Cast Tooling and how is it used to create a die casting?
 
Dies, or die cast molds, are made from alloy tool steel in at least two sections: the fixed die half (cover half), and the ejector die half. When the die casting machine closes, the two die halves are locked and held together by the machine’s hydraulic pressure. During the die casting process,molten metal is injected at high velocity into the mold (die) cavity to form a die cast part.
 
Variations of die cast tooling / die molds include:
 
1. Single cavity to produce one component
 
2. Multiple cavity to produce a number of identical parts
 
3. Unit die to produce different parts at one time
  
4. Combination die to produce several different parts for an assembly.

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  • Mob:+86 180 2737 8269
  • Email:info@langoz.com
  • Add:Room 8306, Mawa Buiding, No 2, BeitaiRoad, Longgui Town, Baiyun District, Guangdong, China.

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