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Q How to inspect the performance of roughcast?
A The way to inspect the performance of roughcast is as below ① to sample the materials located in the front, middle and behind of whole sintered oven. ②take the test sample column (The dimension is around D10*15mm) in the block roughcast.③ get the result to use the Automatic magnetic tester.④ Analysis all data, then determine the material are qualified or not.
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Q What is the difference between sand casting and investment casting?
A Sand and investment casting have similar processes, but sand casting cannot always make small, intricate parts. Sand casting also often utilizes heavier weight limits, sometimes greater than a ton.
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Q What Are ABEC And ISO Precision Level Equivalencies?
A ABEC precision levels, ABEC-1, ABEC-3, ABEC-5, ABEC-7, and ABEC-9 are the equivalent to ISO precision levels P0, P6, P5, P4, and P2 respectively.
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Q What Are ABEC Ratings?
A The ABEC scale is an industry accepted standard for the tolerances of a ball bearing. It was developed by the Annular Bearing Engineering Committee (ABEC) of the American Bearing Manufacturers Association (ABMA). There are five classes, going from widest tolerances to tightest: 1, 3, 5, 7, and 9. Higher ABEC classes provide better precision, efficiency, and greater speed capabilities, but do not necessarily mean that the bearing can spin faster. Additionally, the ABEC rating does not specify many other critical factors, such as smoothness of the rolling contact surfaces, ball precision, and material quality.
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Q Can you use our existing pattern equipment as it is?
A Where a customer has existing pattern equipment, we will usually be able to use it to produce the required castings. However, it may require some modification in some instances to fit in with production methods.
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Q Will you undertake prototype castings?
A We can offer a full prototype service to prove your design before going into batch production.
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Q What effect does lowering the temper temperature have on common alloy grades of steel?
A In general, tempering temperatures are inversely related to strength and hardness and directly related to ductility and toughness.
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Q What grades of steel cannot be heat treated to achieve properties?
A Non-heat treatable grades of steel are those which cannot have their mechanical properties modified due to heat treating. They achieve their mechanical properties through a combination of chemistry selection and forging method.
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Q What is the optimum reduction needed for forging?
A Forging reduction should be sufficient to consolidate the defects inherent to the casting process such as porosity and other voids while achieving a general wrought structure by breaking down the cast structure. A 3-to-1 reduction, using the open die process, is usually sufficient to achieve these results (with strict control of the process, less than 3-to-1 can be sufficient). Depending on the alloy and customer requirements, higher reduction may be necessary to achieve certain additional mechanical or physical requirements.
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Q What is a forging? How does it differ from a casting?
A A forging is metal that has been heated in order to soften it then pressed, hammered, or otherwise formed into a shape. All forgings begin as cast starting stock. Forgings benefit from the forming operation which enhances their overall toughness and fatigue resistance.
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Q What is “ferrous” scrap metal?
A Any metal that contains iron is considered ferrous. You can quickly identify ferrous metal by checking it with a simple magnet. If the magnet is attracted to your material it is ferrous.
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Q What materials can the wire EDM process cut?
A Any material that will conduct electricity can be cut with wire EDM. Check the material with an Olm meter, if it will pass an electrical current it can be cut.
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Q What industry standards do you work to?
A We operate in line with international quality standards recognisedunder the following registrations:
• ISO 9001 - Quality Management System
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Q How can I reduce the cost of my parts?
A Give us a call and we can discuss the different ways for cost savings, thru tolerances, coatings or your material specifications.
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Q Do you have someone who can help select the correct material for my part?
A Our customer service managers have extensive background in both metals and plastics to answer your questions for use in any application.
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Q Why would I consider using investment castings?
A The investment casting process offers many unique benefits over not only other casting processes, but also over many other common manufacturing processes, such as machining, welding, forging, stamping, and assemblies. Examples of these benefits are :
- Design Freedom: The investment casting process allows the designer the flexibility of nearly infinite alloy choices, and great flexibility in external and internal configurations.
- Unlike other casting methods, there are no draft requirements in the investment casting process, allowing for much more accurate dimensional conformance.
- Reduced Machining: Investment castings are produced to close tolerances and near-net size. There is little secondary machining required, thus offering savings in machining time and material costs.
- Mechanical Properties: Investment castings will usually be able to meet the same mechanical properties of components manufactured from wrought metals.
- Superior Aesthetics: The surface finish of investment castings is consistently better than 125 RMS. Fine details, text, logo’s and design features not attainable with other processes are possible.
- Reproducibility: The investment casting process produces a reliable and consistent product.
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Q How to get the best value from Investment castings
A When you consider any process consider the total finished cost of the item. Be it forging, fabrication, machined or casting, it is your total cost that is often the key driver in your decision. Value added features such as consistent near net shape castings, superior as cast surface finish and appearance, cast part numbers, logos and other important branding considerations and are enhancements not easily included with other processes. Many parts that require miscellaneous machining operations or fabrication can be investment cast to full customer satisfaction. Often our parts become an integral part of a fabrication or machined assembly. Again, it is important for our customers to meet us and discuss your requirements to realize the potential value and savings.
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Q What about casting integrity?
A Investment castings are in a league by themselves and are being used for many commercial and critical applications with a great success. In many material applications and in the appropriate size range investment casting is the “go to” process of choice. We go to extra lengths to ensure your confidence often doing pre-production x-ray and other examinations to bring confidence in your experience of purchasing from Fuchun Precision Castings Co.,ltd.
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Q Will you store my molds?
A We can either store your active molds at our facility or return them with your order.
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Q Can I get my mold and samples?
A All samples and molds you paid for are your property and can be returned at any time.
