Cox Powertrain位于英国西萨塞克斯郡的推进系统制造商已选择了基于什罗普郡的Grainger＆Worrall(GW) to develop main engine castings using additive manufacturing for 300 horsepower diesel outboard motors. The CXO300 is a 4.4L, twin turbocharged V8 engine which provides improved fuel efficiency for commercial vessels, leisure and sea rescue. Due to the product’s high demand, GW will leverage new technologies to produce 70 engine sets per week.
“Achieving any world-first requires the support of the best suppliers and all of Cox’s suppliers are carefully evaluated on their abilities,” said Duncan Green, Head of Procurement for Cox Powetrain. “It is important for Cox to partner with a supplier who can provide us with high quality, precision engine castings in the timescales and volumes required.”
“随着Grainger＆Worrall继续投资于增强其当前功能的技术和技术，并具有长期且可靠的往绩，即在其他优质OEM中提供相似的产品，因此成为Cox Powertrain的理想供应商。”
Grainger＆Worralland 3D printing
GW拥有75年的汽车和海洋铸造经验，已冒险进入数字制造，以加速新产品的市场。最近，该公司投资了第三个大型CT扫描仪，以确保其所有组件的质量控制。到目前为止，GW对CT技术的总投资超过120万英镑。
GW业务开发经理Matthias Schoeffmann表示，该公司的沙子铸件是在3D打印的支持下进行的。今年早些时候，GW使用了S-max3D printer fromExone，创建大型结构铝制砂铸件，以加油为水衣推进系统的生产汉密尔顿杰特。
GW还使用Coscast，该过程是铝合金熔化并储存在电炉中的过程，然后用电磁泵将液态金属运输到砂霉菌中。Coscast与GW的数字过程模拟，沙子打印，快速产品验证和精确加工一致。
对于CXO300的铸件，这些方法将被隐含。GW的总监Matthew Grainger表示：“ Grainger＆Worrall将生产汽缸盖以及上和下曲轴箱，是四个重要的发动机铸件的第一次系列生产合同。
“我们公司采用的创新铸造技术使我们成为考克斯雄心勃勃的计划的理想供应商，该计划要求其首次在年底之前进行的发动机铸造。我们的敏捷，灵活的方法是为制造商和供应商提供的完美解决方案，这些制造商和供应商需要减少铅时间的短时标准，而不会损害质量控制。”
3D sand casting
3D printed sand casts have been seen as an economical alternativie for producing casting molds without the need for complex and expensive tools. As well as GW, ExOne’s S-Max and newly relasedS-Max Prohave supported companies in various applications.
在五月，PumpWorks Castings, LLC,an industrial pump manufacturer and foundry, utlised the S-Max system toreduce lead time for the production在两个定制零件中，从17周到8周。
在此之前，Exone与Catalysis Additive Tooling, an Ohio-based 3D print tooling and part manufacturer, to create a new3D打印工具过程for low-to-medium volume production parts. This began with a sand mold produced on the S-Max, which is then processed with Catalysis’ proprietary coatings. This creates a reusable tool to make a plastic, fiberglass, foam or other composite parts within traditional injection, vacuum formed or cast processes.
For the latest additive manufacturing news subscribe to the3D Printing Industry Newsletter， 跟着我们Facebookand like us on推特.
Seeking3D Printing Jobs? Join and advertise on our dedicated site now to reach professionals in this industry.
Featured image shows the CXO300 engine. Photo via Cox Powertrain.
