Material & thickness
Specify the material standard, grade, condition and nominal thickness. Identify permitted material substitutions on the RFQ or drawing, as changes in grade, condition or thickness may affect forming and finishing decisions.
钣金加工
图片占位符Formed sheet metal component照片待添加
Formed conditionBends · Holes · Interfaces
For brackets, panels and enclosures, define the formed geometry, mounting interfaces, joining and finish requirements before selecting the manufacturing route. Share your drawings and quantities with GPT Precision for a project-specific review.
Define the part in its assembled condition
Show how the component will fit and function. Keep the formed model, drawing and any supplied flat pattern on the same revision.
Bends & nearby features
Identify bend directions, angles and functionally important radii. Highlight holes, slots and cutouts near bends so their final condition and forming access can be reviewed together.
Mounting & mating surfaces
Mark the datums, hole patterns and clearances that control installation. Include the mating component or an assembly view where an isolated part drawing leaves the fit unclear.
Choose a route that fits the design and demand
The appropriate route depends on geometry, quantities, secondary operations and acceptance requirements. Cutting, bending and stamping may be considered during project review where applicable.
Cutting & bending
A route to assess for flat profiles and formed components, particularly when design changes remain likely. Discuss cutting method, bend access and any secondary operations together.
Dedicated stamping tooling
A route to evaluate when a stable design and expected repeat demand can support tooling investment. Clarify tooling cost, ownership, maintenance and the effect of future design changes.
Compare the total supply scope
Include joining, hardware, 加工完成, inspection and packaging in the comparison. A lower cost at one operation may not produce the best overall route for the finished assembly.
Define joining and finishing with the part requirements
Define these requirements before the route is agreed. Their effect on fit, appearance and inspection should be included in the quotation scope.
Joints & installed hardware
Identify weld locations, inserts, rivets or fasteners and any access restrictions. Specify alignment and any required strength or sealing tests. Confirm the assembly operations and verification included in supply.
Visible surfaces & protected areas
Mark cosmetic faces, acceptable edge condition, finish requirements and areas to mask or protect. State whether critical dimensions apply before or after coating, and identify contact surfaces that must remain functional.
Agree how the formed part will be accepted
Critical features need a shared reference condition. Define whether dimensions are checked in the free state, after joining or in an agreed fixture.
图片占位符Mounting interfaces & formed features照片待添加
Dimensional requirements
Identify the dimensions and tolerances that control assembly. Review bend angles, hole locations and interface relationships as part of the complete formed geometry.
外观 & function
Clarify acceptable burrs, edge treatment, visible marks and finish variation. If a sample or visual standard governs acceptance, identify its revision and approval status.
检验 & records
Specify measurement references, sampling and the records needed for approval. Agree any functional checks and reporting scope during quotation. Read more about quality assurance.
Send a clear sheet metal inquiry
Provide the following information so the review can focus on the decisions that affect your part.
Drawings & revision
Formed 3D model, dimensioned drawing and available flat-pattern data; revision, units and the document that takes priority if files differ.
Material, 数量 & delivery
Material and thickness, initial order quantity, expected repeat demand and target delivery date. Identify sample approval milestones or phased deliveries where applicable.
装配 & 验收
Mating interfaces, joining and finish requirements, critical dimensions, inspection records and packaging needs.
交货时间根据图纸评估, 材料, 以及订单数量，并在报价或订单审核时确认.
Sheet metal project questions
Should I send a flat pattern or a formed model?
Send the formed model and dimensioned drawing, together with a flat pattern if available. Identify the governing revision and agree responsibility for the developed blank before manufacture.
Can you quote from a drawing without a fixed manufacturing route?
Share the finished-part requirements, quantity and expected repeat demand. The discussion can then identify which routes merit assessment and which details need to be resolved before a quotation is confirmed.
What tolerances should I put on the drawing?
Start with the dimensions that control fit and function. Make the measurement condition explicit and identify any governing drawing standard. Feasibility is reviewed for the geometry, material and proposed process.
When should stamping be considered?
Assess stamping when the design, expected demand and tooling investment justify a comparison. Include future changes, secondary operations and acceptance requirements; there is no single quantity threshold for every part.
What if some features need machining?
Identify the features and final tolerances in the drawing. Review the sequence alongside forming and joining, and see CNC 加工服务 for the related machining scope.
Ready to review your sheet metal project?
Send the current drawing revision, 材料, quantities and critical interfaces. The project scope, manufacturing route and acceptance requirements are reviewed before quotation.
