Requirement Communication: The client provides detailed design drawings, specifications, and information about the usage environment. This includes architectural drawings, installation locations, load-bearing requirements, wind pressure resistance, and desired appearance.
DFM (Design for Manufacturability) Review: Engineers review the design files to evaluate their manufacturability.
Material and Surface Treatment Selection: Based on the usage environment (indoor/outdoor), corrosion resistance requirements, and budget, the most suitable material and surface treatment are recommended. Common materials include galvanized steel, stainless steel (e.g., 304 or 316), and aluminum alloys. Surface treatments may include powder coating, anodizing, or hot-dip galvanizing.
Quotation and Project Confirmation: A detailed quote is provided based on the design complexity, material costs, processing time, and quantity. Once the client confirms, the project officially begins.
2D Flat Pattern: Engineers convert the 3D model into a 2D flat pattern for laser cutting or CNC punching. This process requires precise calculations to ensure the final dimensions are accurate after bending.
CNC (Numerical Control) Programming: Appropriate CNC code (like G-code) is generated for the laser cutter, CNC punch press, or CNC press brake, planning the cutting paths and bending sequence.
Material Procurement and Preparation: The required sheet metal is procured. If necessary, the sheets may be pre-treated, such as by cleaning or surface preparation.
Cutting: A laser cutter or CNC punch press is used to precisely cut the sheet metal, creating the part's flat profile and holes. Laser cutting is often used for its high precision and flexibility.
Bending: The cut parts are placed into a CNC press brake to be bent at precise angles and in the programmed sequence, forming the predetermined three-dimensional shape.
Welding (if needed): For complex assemblies or when multiple parts need to be joined, welding is performed. Common methods include TIG and MIG welding to ensure the strength and appearance of the joints.
Deburring & Finishing: The cut and welded parts are polished to remove burrs and sharp edges, ensuring safety and a clean look.
Cleaning: Before any coating is applied, the parts are thoroughly cleaned and degreased to ensure proper coating adhesion.
Coating: Based on client requirements, powder coating, hot-dip galvanizing, or anodizing is applied. Powder coating offers a wide range of colors and good corrosion resistance; hot-dip galvanizing provides excellent rust protection, especially for outdoor environments; and anodizing is often used on aluminum alloys to enhance their durability and appearance.
Other Detailing: This may include silk-screening (for warning labels or logos) or installing nuts and studs.
Dimensional Inspection: Tools such as calipers, tape measures, or a CMM (Coordinate Measuring Machine) are used for a strict inspection of key dimensions and tolerances.
Surface Inspection: The thickness, adhesion, and appearance of the surface coating are checked to ensure there are no bubbles, scratches, or color variations.
Assembly Check: For components made of multiple parts, a test assembly is performed to ensure all components fit perfectly.
Packaging and Delivery: Qualified products are properly packaged to prevent damage during transport, and delivery is arranged according to the client's requirements.
Galvanized Steel
Characteristics: Galvanized steel is one of the most common materials in construction because a zinc coating on its surface effectively prevents rust and corrosion. This material offers good strength and cost-effectiveness and can be easily cut and bent.
Applications: It's mainly used for manufacturing HVAC ducts, roof brackets, vents, structural connectors, and frames—parts that often need to withstand outdoor environments.
Stainless Steel
Characteristics: Stainless steel is favored for its excellent corrosion resistance, high strength, and clean appearance. Common grades like 304 and 316 are used, with 316 stainless steel containing molybdenum for superior resistance to chloride corrosion, making it ideal for coastal or salty environments.
Applications: It's frequently used for architectural facades, railings, interior decor, kitchens, public sanitary facilities, and structural brackets that must endure harsh conditions.
Aluminum Alloys
Characteristics: The biggest advantages of aluminum alloys are their lightweight nature and corrosion resistance. They are easily extruded and machined, and the surface can be treated with anodizing to create various colors and finishes, adding aesthetic value. While not as strong as steel, their lightweight property is very useful in large-span construction or projects that need to reduce structural weight.
Applications: They are widely applied in building facades, window frames, sunshades, roofing systems, and lightweight structural brackets.
The processing of custom sheet metal parts has unique features designed to meet the high demands of the architecture and infrastructure sectors for precision, strength, and weather resistance.
High-Precision Forming: Architectural components require extremely high dimensional accuracy to ensure a perfect fit between different parts. Using laser cutting and CNC bending, complex geometries and precise hole locations can be achieved, ensuring part consistency in large-scale production.
Welding and Assembly: Many large structural components are assembled by welding multiple sheet metal parts. Welding techniques like TIG and MIG are widely used to ensure the strength and stability of the connections. For exposed welds, they are often ground and polished to meet aesthetic requirements.
Surface Treatment and Weather Resistance: This is one of the most crucial processing characteristics for architectural sheet metal parts.
Powder Coating: Provides a tough, durable protective layer that effectively resists UV rays and weather erosion while offering a wide range of color options.
Hot-Dip Galvanizing: A process where parts are submerged in molten zinc to form a thick zinc alloy layer, providing excellent long-term corrosion protection, especially for outdoor brackets and underground pipes.
Anodizing: Used for aluminum alloys, it not only increases hardness and corrosion resistance but also creates various metallic-finish surfaces that enhance the building's aesthetic appeal.
Founded in 2005, Waltay Company has over 15 years of experience in custom sheet metal fabrication, in addition to their CNC machining expertise. In the architecture and infrastructure sectors, projects are often large-scale and have strict requirements, demanding a supplier with deep industry knowledge and practical experience. Our long history means we are familiar with the characteristics of various materials (like galvanized steel, stainless steel, and aluminum alloys) and can provide professional advice tailored to specific applications, ensuring the durability and reliability of the final product.
Architecture and infrastructure projects have extremely high standards for quality and safety. Waltay Company's adherence to ISO 9001 and ISO 14001 standards shows they have a rigorous quality management system in place. ISO 9001 guarantees consistency and high standards throughout the production process, while ISO 14001 focuses on environmental management—an important bonus for large-scale construction projects that demonstrates a commitment to sustainability. This dedication to quality provides clients with confidence that every part delivered meets strict engineering specifications.
Waltay offers more than just basic fabrication. Our "one-stop" service model is highly valuable for complex construction projects:
Design Assistance: They provide part design and prototyping services, helping clients validate designs before production, which reduces errors and rework.
Diverse Machining Capabilities: Besides sheet metal forming, we also offer CNC machining, mold making, plastic injection, and other services. This means if a project requires different types of parts (e.g., a sheet metal bracket and an injection-molded spacer), the client can get them from a single supplier, simplifying supply chain management.
Post-Processing Services: We are skilled in various surface treatments, such as powder coating, anodizing, and galvanizing—all crucial steps for ensuring that architectural parts are durable in outdoor environments.
For construction projects that often have tight schedules, quick response and on-time delivery are critical. With over 15 years of experience, Waltay can efficiently manage the production process and offer rapid prototyping within just 3-5 days, allowing clients to quickly validate design solutions in the early stages of a project. A mature supply chain and production management system also guarantee stability and timely delivery for large-scale production runs.
In short, choosing Waltay Company means partnering with a supplier that combines extensive experience, strict quality control, comprehensive service capabilities, and efficient production, which effectively reduces project risks and ensures the high-quality delivery of custom sheet metal parts and brackets.