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首页> 外文会议>Materials Science Technology Conference and Exhibition >DEVELOPMENT OF LOW ALLOY HIGH STRENGTH STEEL PROCESS PARAMETERS FOR DIRECT METAL LASER SINTERING
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DEVELOPMENT OF LOW ALLOY HIGH STRENGTH STEEL PROCESS PARAMETERS FOR DIRECT METAL LASER SINTERING

机译：直接金属激光烧结低合金高强度钢工艺参数的研制

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Direct Metal Laser Sintering (DMLS) is an emerging additive manufacturing process with the capability to manufacture small parts with complex geometries which otherwise cannot be produced by subtractive manufacturing techniques. Most components produced by DMLS are fully dense and have mechanical properties that are comparable to wrought material. In order to increase the use of DMLS, it is critical to expand the number of qualified powders from twelve to produce a wider range of alloys for DoD (Department of Defense)-centric applications. Development of low-alloy high-strength steels for the DMLS process will increase the applications of this technology for the DoD to support readiness, repair and maneuverability. For this study, a DMLS 'recipe' for a new metal powder was created by adjusting machine parameters (i.e. hatch distance and laser scan rate) in an effort to produce a fully dense structure with excellent mechanical properties. Microhardness and microstructure analyses were used to investigate the effects of the machine parameters on the quality of the steel component.
机译：直接金属激光烧结（DMLS）是一种新兴添加剂制造工艺，其能力制造具有复杂几何形状的小部件，否则不能通过减法制造技术生产。 DMLS生产的大多数组件完全密集，具有与锻造材料相当的机械性能。为了增加DMLS的使用，拓展十二种合格粉末数量至关重要，为DOD（防御部） - 康复应用而言，为生产更广泛的合金。用于DMLS工艺的低合金高强度钢的开发将增加该技术的应用，以支持准备，维修和机动性。对于本研究，通过调节机器参数（即舱口距离和激光扫描速率）来产生新的金属粉末的DMLS的配方'，以产生具有优异机械性能的完全密集的结构。微硬度和微观结构分析用于研究机器参数对钢组分质量的影响。

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