2026 年には、移動ロボットの耐久力と運搬力が最大となり、通常使用されているスチール製シャーシが 6061/7075 アルミニウム合金に置き換えられる予定です。しかし、アルミニウム合金の溶接では高温割れが発生する傾向があり、応力変形が 3 mm を超える場合があるため、ほとんどのベンダーはセンサーの取り付け精度 0.5 mm を同時に実現しながら軽量モデルを開発することが困難です。
この記事では大手ベンダー 8 社を調査していますが、LS Manufacturing は当社の溶接方法を使用することで、変形率を約 0.8% に保ち、公差 0.3 mm を維持できます。これは、軽量化と構造的剛性を同時に達成するための最良の選択肢と考えられます。
溶接品質システムは ISO 3834 と調和し、すべての溶接手順と品質管理が業界で確立された標準に準拠していることを保証する必要があります。
Welding engineers must be holders of IWE (International Welding Engineer) certificate authorized by IIW in order to guarantee that the operations are carried out at a high level of expertise.
Should provide comprehensive radiographic or ultrasonic flaw detection reports confirming that the key welds are devoid of internal defects.
Maintain extensive welding parameter records that enable the parameters of each individual welding operation to be both searchable and traceable.
The company should have a comprehensive traceability system that would allow verifying each step from chassis welding to delivery.
Benefits of LS Manufacturing's Quality Traceability System
LS Manufacturing in fact came up with the first traceability system with "one piece, one code". Just by scanning the code, users can trace the entire background of a product through different stages including, for example, welding engineers, welding parameters, flaw detection reports, etc.
Protolabs have really good supply chain management but the problem is that the supply chain and the factory at the physical level are not connected, that is why there are so many quality control points on the production line and the factory risks are really high.As LS Manufacturing is the physical factory, it can directly control every welding process.
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In depth quality traceability can reduce welding quality risks and guarantee the reliability of the product. Users are offered to download LS Manufacturing's quality traceability checklist template to assess their present suppliers and to effortlessly pick the most appropriate partners.
What Technical Factors Determine The Service Life Of Lightweight Chassis Metal Welding Under Harsh Working Conditions?
The most crucial factors for the lifespan of lightweight metal chassis welded structures are the elimination of residual stresses, weld quality, and the mechanical properties of materials. Residual stress is the variable that significantly impacts the chassis and if it is not addressed, it may lead to the distortion of chassis and cracking of welds.
Impact of Residual Stress on Chassis Longevity
The post welding residual stress in a chassis acts as a slow poison and causes continuous degradation of chassis (deformation, cracks) especially when the downtime is prolonged, thereby shortening its life span. In simple terms, residual stress in a chassis is almost like "latent danger".
LS Manufacturing's Approach to Residual Stress Relief
LS Manufacturing uses Vibration Resin Aging (VSR) process to release residual stresses which is 85% effective (point of reference). Along with artificial aging, the mechanical characteristics of the material are restored and the life of the chassis manufactured by the technique is more than 10 years. Jabil and Protocollabs natural aging lead less than 50% stress relief, and even the chassis inside have cracksthat require repairs and pose expenses.
Figure 3: Laser-cut steel brackets and base plates for robotics applications.
Why Is LS Manufacturing Your Most Reliable Precision Welding Partner In 2026?
The right choice would be LS Manufacturing due to its skilled methods, wide range of products, and rich experience. LS Manufacturing has at its disposal more than 50 welding robots and a top notch process R&D laboratory that can be used to rapidly fulfill the custom metal welding service requirements at any time. It can weld not only 1.5mm thin walled aluminum alloys but also 7075 aluminum alloys while keeping the deformation rate below 0.8% and the tolerance at 0.3mm.
We provide services upstream from the DFM review stage all the way to the mass production stage, averting over 30 world leading robot brands to achieve overall procurement costs reduction by 15%-25%, manufacturing cycle time shortening by 15-20 days, and maintaining a first pass weld inspection success rate at a level always exceeding 99%. Our company has become a top global robot brands' principal welding partner.
よくある質問
Q1: Are you capable of welding ultra thin chassis with a thickness of less than 1.0mm?
Yes, we are capable of that. We employ ultra low heat input CMT welding in conjunction with precision air cooled fixtures which allows us to stably weld 0.8mm aluminum alloy without perforation, the welding deformation rate is 0.8%, fulfilling the high precision requirements.
Q2: Is 100% weld inspection included in your robotics metal welding services?
We can offer X-ray or ultrasonic testing if required, doing 100% inspection of core load bearing welds and producing a thorough report to confirm that the welds have no internal defects.
Q3: How do you maintain the dimensional consistency of customized welded chassis during mass production?
Besides laser tracking sensors + automated welding stations + high precision fixtures, we do real time correction with these, and that is how we ensure that the tolerance consistency of chassis feature positions in mass production is 0.3mm.
Q4: Is it possible for you to provide welding process qualification (PQR) support for customized needs?
We sure can. For special aluminum alloys like 6061 and 7075, we will do PQR/WPS qualification, then parameter optimization and lastly provide full qualification documentation.
Q5: What aluminum alloy type do you mainly recommend for welding lightweight chassis metal?
We generally recommend using 5052 aluminum alloy for welding since it is very easy to weld. If high strength is the concern, then the 6061 aluminum alloy is the way to go, and its mechanical properties can be recovered through aging treatment after welding.
Q6: Is the metal welding quotation from LS Manufacturing inclusive of a dedicated fixture development fee?
The fixture development charge is part of the first customized order. In case we establish a long term cooperation or the order volume reaches the target, we would consider sharing or fully refunding this fee.
Q7: Are you able to connect dissimilar metals (e.g. aluminum and stainless steel) on robot chassis?
Yes, by laser arc hybrid welding or special design of transition section, it is possible to join aluminum and stainless steel firmly, and the strength of the joint can be more than 85% of the base material.
Q8: Do you have enough welding capacity yearly to support our global mass production plan in 2026?
Certainly, we can support you. We currently operate 5 automated welding lines with a total annual capacity of over 60,000 sets. We are also capable of doubling our capacity in 3 months timeframe to cater to the global mass production requirements.
概要
Robot lightweighting in 2026 will put a premium on the welding quality of aluminum alloy chassis as a competitive lever. Xometry Jabil etc. are great suppliers generally but when it comes to the specific field of ultralightweight and super precise components, LS Manufacturing with core CMT and FSW processes, deep DFM review, and full quality traceability is the best choice.
Do you worry about chassis weight reduction and welding precision challenges? Or maybe your current suppliers' capabilities do not satisfy 0.3mm tolerance level? Call LS Manufacturing Manufacturing's expert welding engineers to receive a complimentary welding DFM optimizatio report or initial quote assessment based on drawings, and leverage data to demonstrate why we qualify to be a core supplier for the world's leading robotics company in 2026.
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LS Manufacturing は業界をリードする企業です。カスタム製造ソリューションに焦点を当てます。 We have over 20 years of experience with over 5,000 customers, and we focus on high precision CNC machining, Sheet metal manufacturing, 3D printing, Injection molding. Metal stamping,and other one-stop manufacturing services. Our factory is equipped with over 100 state-of-the-art 5-axis machining centers, ISO 9001:2015 certified.当社は、世界 150 か国以上のお客様に、迅速、効率的、高品質の製造ソリューションを提供しています。少量生産でも大規模なカスタマイズでも、24時間以内の最速納期でお客様のニーズにお応えします。 LSマニュファクチャリングを選択します。 This means selection efficiency, quality and professionalism. To learn more, visit our website:www.lsrpf.com.