1. Engineering Architecture & Technical Profile

Custom-designed for the home appliance and HVAC refrigeration sectors, our metal stamping die systems offer exceptional performance in heavy deep-drawing, tight-radius bending, and multi-hole punching applications. Built with high-rigidity Meehanite cast frames or forged tool steel plates, this tooling ensures reliable structural integrity and pressure-tight seam forming for compressor housings and heat exchanger components.

2. Operational Specification Matrix

Technical Indicator PDF+ 1	Appliance Cabinet & Panel Grade PDF+ 1	Compressor & Pressure Vessel Grade PDF+ 1
Compatible Sheet Material	Pre-painted Steel / SECC / GI (0.4 - 1.2 mm)	SPHE Hot-Rolled / SPHC / SS304 (1.5 - 4.0 mm)
Maximum Draw Depth Capacity	Up to 120 mm single-stage	Up to 280 mm multi-stage sequence
Forming Pressure Tolerance	±1.5% Across 100,000 cycles	±0.8% Pressure Burst Limit Tested
Core Die Steel Grade	Cr12Mo1V1 / SKD11 Vacuum Hardened	SLD / High-Toughness DC53 Tool Steel
Surface Treatment Option	Hard Chrome Plating (Hv 900+)	TD Coating / CVD TiAlN Thermal Coating
Guaranteed Die Service Cycle	1,500,000 Total Strokes	1,000,000 Heavy-Duty Deep Draw Strokes

3. Core Process Highlights

01. Multi-Stage Thinning-Draw Optimization: Features computer-simulated transition radii that redistribute strain tensor forces during deep drawing, preventing wall tear and material necking on thick steel compressor shells.

02. Hydraulic Cushion Pressure Control: Integrates adjustable nitrogen gas spring clusters or hydraulic cushion pins to maintain uniform blank holder pressure, eliminating flange wrinkling without surface scuffing.

03. High-Speed Fin Collar Flanging Assembly: Specially built for HVAC heat exchangers, achieving razor-sharp louver punching and uniform tube collar heights at press speeds up to 280 SPM.

4. Technical FAQ & Customer Inquiry Guide

Q1: How does this metal stamping die resolve material wall thinning and cracking in deep compressor housing draws?

A: We utilize FEA stretch-forming simulations to engineer incremental draw ratios across stations. Combined with TD-coated die cavities and specialized drawing lubricants, material thinning is strictly contained within 10-12%.

Q2: Can your tooling process pre-coated or prepainted galvanized sheet steel without scratching the surface finish?

A: Yes. We install mirror-polished PVD/DLC inserts and non-marking polyurethane pressure pads. This allows high-speed blanking and forming without fracturing the zinc layer or marring painted appliance panels.

Q3: What maintenance and spare parts package is included with the export shipment?

A: Every metal stamping die ships with a 100% wearable parts kit (including extra punches, springs, pilot pins, and die bushings), along with 2D part drawings and step-by-step disassembly guidelines.

Q4: What is the typical trial and approval workflow before final shipment to our plant?

A: We conduct T0/T1 trial runs on our internal 300T-800T press lines, perform full CMM dimensional checks and pressure burst tests, and deliver HD trial videos with 50-piece sample batches for your evaluation before dispatch.