Sheet metal cutting is the first key step. Two common methods are laser cutting and NCT stamping. They have big differences in precision, cost and application scope.

Comparison Items	Laser Cutting	NCT Stamping
Precision	High (error ≤ 0.1mm)	Medium (error 0.1-0.3mm)
Cost for Molds	No mold needed, low initial cost	Need molds, high initial cost
Suitable Batch	Small to medium batch	Large batch
Material Thickness Range	0.5-20mm	0.3-10mm

CNC bending shapes the cut sheet metal. The precision of this process directly affects the product's assembly fit. We primarily employ three core methods to ensure precision control. First, we select high-quality bending machines equipped with servo motors, which can accurately control the bending angle. Second, we perform daily equipment calibration to prevent errors caused by mechanical wear. Finally, we provide strict training for operators, requiring them to use a protractor for real-time angle verification during processing.

"CNC bending precision depends on both equipment performance and standardized operations," notes Mike Lee, a sheet metal technology expert with 12 years of experience. "Even with sophisticated equipment, a lack of regular calibration can still lead to errors."

Surface treatment is vital for rust prevention and beauty. Powder coating and anodizing are two popular methods. Their differences are clear in many aspects.

Comparison Items	Powder Coating	Anodizing
Applicable Materials	Steel, aluminum, iron	Aluminum mainly
Corrosion Resistance	High (coating thickness 50-120μm)	Medium (film thickness 10-20μm)
Color Options	Rich, any color available	Limited, mainly natural or light colors
Cost	Medium	High

To get long-lasting rust prevention and beauty, we follow two main steps. First, we do strict pre-treatment. This includes degreasing, pickling and passivation. Degreasing removes oil on the surface. Pickling gets rid of rust. Passivation forms a protective film. Second, we control the processing environment. We keep the workshop clean and dry. This stops dust and moisture from affecting the surface.

YITECH focuses on rapid prototyping and small-batch production. Our mold-free production has three big advantages. First, it saves time. Mold making usually takes 7-30 days. Mold-free production can start in 3-7 days. Second, it reduces cost. You don't need to pay for expensive molds. This is good for small-batch orders (50-100 pieces). Third, it allows flexible design changes. You can adjust the design easily without changing molds.

Scratches and color differences are common defects in sheet metal processing. We have effective ways to avoid them.

For scratches: We use protective films on the sheet metal surface during processing. We also use rubber gloves when handling materials. The workshop floor is covered with anti-scratch mats. This stops the sheet metal from rubbing against hard surfaces.

For color differences: We use the same batch of powder for the same order. We check the powder color before production. We also keep the baking temperature and time stable. These steps make sure the color is consistent.

Starting your custom sheet metal project is easy. First, send us your design drawings. Our engineers will check the drawings and give suggestions. Second, we make a sample for you to confirm. Third, we start mass production after you approve the sample. We provide one-stop service to save your time and energy.

A1: It usually takes 3-5 working days. The time may change based on the product’s complexity.

A2: Powder coating is better. It has strong corrosion resistance and can stand bad weather.

A3: We mainly use aluminum, cold-rolled steel and stainless steel. We can choose materials based on your needs.

A4: Yes. We can handle both small-batch (10-500 pieces) and large-batch (over 1000 pieces) production. We adjust the process based on the batch size.