long892230：工业手板制作https://www.pineprint.com/
在工业设计流程中，手板模型制作是重要的环节，从纯手工模型制作到半机械化模型制作到现代CAM，手板模型制作的进步是现代制造技术进步的一个缩影，实践证明，手板模型的制作不仅对产品设计决策起着十分重要的作用，更是产品信息保密及市场推广的利器，不可小觑。下面从工业设计流程的不同阶段来看看手板厂手板模型制作的重要性。
一、设计讨论
在产品设计的过程中，讨论十分重要，可视化是产品设计表达的重要环节，是设计讨论的基石。快速有效地建立产品的模型，可以在相同的时间获得更高的设计效率。
在设计创意阶段，使用最多的往往是基于图纸的2D表现，然而到了中后期，设计的表现将更加具体，应该采用更为具体直观的手板模型作为讨论的对象。
与平面的2D表现相比，手板模型有着无法替代的优势。手板模型可以使产品的细节更加明确，产品的视觉感受更加直观，设计团队中每个人都能够察看这些设计，在协调整个团队的工作方面优势明显。
二、设计优化
现代工业设计涵盖的内容十分广泛，小到回形针、圆珠笔，大到飞机，轮船，无不包含着现代工业设计的影子，但是如此众多的产品，其设计方法并不相同。
偏重于几何图形的机械零件可以很好地通过计算机制图直接设计，还可以通过计算机三维软件的动力学法则进行一定程度的运动模拟实验。对带有曲面的一些产品，比如日用小家电产品，一方面可以通过计算机直接进行设计，另一方面也可以通过逆向工程技术(俗称抄数)进行三维测绘获得三维造型数据，通过计算机的差值算法进行平滑修正，修正后形成的三维模型数据就可以用于手板模型制作。
对偏重于曲面造型变化的艺术品设计时，这一方法优势更为明显，因为艺术品的外观造型侧重人的直接美学感受，往往无规律可循，很难在其中找到规则的几何元素，如果直接进行电脑三维绘图，反而是事倍功半，即使建立起了模型，其后续修改性也很差，如果反其道而行之，首先由造型设计人员直接用油泥等材料塑造形体，然后通过三维扫描设备将模型参数化，得到原始模型的电脑数据后再进一步通过手板快速模型设备加以制作加工，就可极大地提高设计效率。
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jasonmould：What is Die Casting
Die casting is a metal casting process that is characterized by forcing molten metal under high pressure into a mold cavity, consisting of two machined and hardened tool steel dies. Most die castings are made from non-ferrousmetals, specifically zinc, copper, aluminium, magnesium, lead, pewter and tin-based alloys. Depending on the type of metal being cast, a hot- or cold-chamber machine is used.
Two Types of Die Casting
There are two basic types of die casting machines: hot-chamber machines and cold-chamber machines. These are rated by how much clamping force they can apply. Typical ratings are between 400 and 4,000 st (2,500 and 25,400 kg).
Hot–Chamber Die Casting
The hot-chamber process is applicable only for zinc and other low melting point alloys that does not affect and erode metal pots cylinders and plungers.The molten metal for casting is placed in the holding furnace at the required temperature adjacent to(sometimes as part of the machine itself) the machine. The injection mechanism is placed within the holding furnace and most of its part is in constant touch with the molten metal. When pressure is transmitted by the injection piston, the metal is forced through the gooseneck into the die. On the return stroke, the metal is drawn towards the gooseneck for the next shot.This process ensures minimum contact between air and the metal to be injected. The tendency for entrainment of air in the metal during injection is also minimised.
Cold–Chamber Die Casting
The difference of this process with the hot-chamber process is that the injection system is not submerged in molten metal. On the contrary, metal gets transferred by ladle, manually or automatically, to the shot sleeve. The metal is pushed into the die by a hydraulically operated plunger. This process minimises the contact time between the injector components and the molten metal. Which extends the life of the components. However the entrainment of air into the metal generally associated with high-speed injection can cause gas porosity in the castings. In the cold chamber machine, injection pressures over 10,000 psi or 70,000 KPa is obtainable. Generally steel castings along with aluminium and copper based alloys are produced by this method.
die-casting-products
Advantages of Die Casting
Excellent dimensional accuracy (dependent on casting material, but typically 0.1 mm for the first 2.5 cm (0.005 inch for the first inch) and 0.02 mm for each additional centimeter (0.002 inch for each additional inch).
Smooth cast surfaces(Ra 1–2.5 micrometres or 0.04–0.10 thou rms).
Thinner walls can be cast as compared to sand and permanent mold casting (approximately 0.75 mm or 0.030 in).
Inserts can be cast-in (such as threaded inserts, heating elements, and high strength bearing surfaces).
Reduces or eliminates secondary machining operations.
Rapid production rates.
Casting tensile strength as high as 415 megapascals (60 ksi).
Casting of low fluidity metals.
JasonMould Industrial Company Limited is a professional China plastic injection molding company for 3D Printing Rapid Prototyping Service,precision CNC milling service and custom CNC machining services,custom plastic injection molding or moulding company with mould and dies development and manufacturing. We offer various high quality metal die casting process service With our extensive experience of more than eight years in the industry, we provide the best casting solutions that can be customized according to your requirements.
Contact:
Person: James Yuan
Company: JasonMould Industrial Company Limited
Add:LongGang Village,LongXi Town,BoLuo County,HuiZhou City,GuangDong Province, China.
Tel: 86-752-6682869
Email: james@jasonmolding.com
Blog:https://flipboard.com/@Jasonmould2018
Site:https://www.jasonmolding.com/plastic-injection-molding/
