Surface Polishing and Grinding Service

HEYA METAL | Custom Automotive Exhaust Parts Manufacturer Since 1994

English

Surface Polishing and Grinding Process

Surface polishing and grinding is a precision manufacturing process that relies on gradual and fine mechanical friction. Its core mechanism involves removing trace amounts of material and modifying the plastic deformation surface layer, ultimately achieving ultra-high surface finish, flatness, and gloss of workpieces while improving their functional properties.

Our Capabilities

Surface Quality Improvement

The surface roughness (Ra value) can be reduced from several micrometers to below 0.01μm (e.g., mirror polishing). Additionally, polishing removes scratches, burrs, and oxide layers, enhancing surface uniformity.

Functional Enhancement

It seals micro-pores on the bright surface to improve corrosion resistance, and reduces the friction coefficient to lower the risk of jamming (e.g., hydraulic valve cores).

Process Flexibility

The process follows a gradient refinement workflow: rough polishing (using 80–400 grit abrasives) → fine polishing (using abrasives with over 1,000 grit) → ultra-fine polishing (nano-level precision).

Automation Technology

Independently developed patented robotic polishing technology reduces workers’ labor intensity, improves the working environment, thereby increasing production efficiency and lowering production costs.

Application

Automotive Manufacturing

Parts such as interior trim components, metal decorative tailpipes, wheel hubs, and turbine blades.

Home Appliances & Household Products

Stainless steel tableware, metal sanitary ware, home appliance door panels, metal lamps, and hardware parts.

Consumer Electronics

Metal casings for mobile phones and metal casings for smart wearables.

Applicable Material

Metals: Steel, aluminum, titanium alloy, etc.

Get in touch with us

Service Process

Customer Requirement Collection

Gather customer requirements, including 2D drawings/3D models or samples, technical parameters, performance requirements, packaging styles, logistics methods, and production capacity needs.

Process Evaluation

Based on customer requirements, the technical team conducts a comprehensive assessment of process specifications, technical difficulties, potential risks, and equipment capabilities, and issues a Feasibility Report and Process Flow.

Quotation Arrangment

The cost accounting department calculates the total cost based on the Feasibility Report and Process Flow, provides the most competitive price, and reaches a satisfactory agreement with the customer.

Process Design

After signing the intent agreement with the customer, hold a development kick-off meeting and establish an APQP team. Conduct process and mold design based on historical defect data and PFMEA analysis, and issue design drawings.

Development & Manufacturing

Manufacture molds, jigs, gauges, and special equipment according to the design drawings; conduct trial production in phases such as T1/T2/T3; and produce qualified samples.

Testing & Inspection

Perform 100% drawing verification and confirmation in accordance with customer drawings and technical performance requirements to ensure product compliance.

Sample Delivery & Verification

Deliver samples (qualified through in-house inspection) to the customer for confirmation and verification, and collect customer feedback.

Mass Production

After verifying product stability through trial production phases including T1/T2/T3/PP/PV/SOP, conduct PFMEA verification, SPC process capability analysis, production capacity verification, MSA analysis, personnel training, and preparation of standardized documents. Enter mass production only after obtaining PPAP approval.

Why Choose Us

Choose us, and we promise to do everything needed to ensure a successful and satisfactory working partnership. The 4 reasons set out below will give you an insight into us.

Advantage 01

Various Production Equipment

We have 12 units of independently developed automatic polishing and grinding stations, which can perform surface polishing and grinding on workpieces of different shapes (including circular, square, and special-shaped). This not only reduces manual labor intensity but also ensures consistent product quality.

Advantage 02

Various Testing Equipment

The company owns a full range of testing equipment, including 3D scanners, martensite content testers, thickness gauges, coordinate measuring machines (CMMs), projectors, salt spray test chambers, metallographic microscopes, tensile testing machines, fatigue testing machines, hardness testers, and roughness testers. These equipment can meet the precision testing and verification requirements for materials, products, and molds.

Advantage 03

Professional Design Team

We have a strong technical team and talent reserve, with the independent capability to develop special equipment, molds, jigs, and gauges. It has 5 design and development personnel, 2 mechatronic programming specialists, and 16 mechanical manufacturing technicians. Additionally, the company collaborates with research institutions and universities to study the application of relevant technologies and holds 30 patents for various technologies.

Advantage 04

Quality Assurance System

We have established a quality assurance system framework and obtained the IATF16949 quality management system certification. It also effectively controls environmental and occupational health and safety aspects, and has obtained the ISO14001 (environmental management system) and ISO45001 (occupational health and safety management system) certifications.