WOCO Group Hiring: Engineer / Sr. Engineer – Process Engineering (Greater Noida)

WOCO Group Hiring: Engineer / Sr. Engineer – Process Engineering, WOCO Group, a global leader in automation machinery and automotive components, is inviting applications for the position of Engineer / Senior Engineer – Process Engineering at its Greater Noida facility. This role is ideal for professionals who have strong technical expertise in moulding processes and are passionate about process optimization in a manufacturing environment.

🎓 Required Qualification

• B.Tech / Diploma in Mechanical Engineering or Plastic Engineering

• Experience: 4 to 7 years in process engineering or moulding operations

🔍 Key Responsibilities

As part of the Process Engineering team, you will:

1. Perform process analysis and manage tool trials on production machines.

2. Prepare Standard Operating Procedures (SOPs) and conduct process reviews after trials.

3. Create detailed setup sheets for new and existing molds.

4. Conduct process validation, drive 8D problem-solving, and identify improvement areas.

5. Analyze rejection trends, wastage, and production efficiency to support process optimization.

6. Manage new equipment setup and deliver process-related training to operators and supervisors.

7. Support major quality and process audits, including PPAP, APQP, DFMEA, PFMEA, VDA, and IATF requirements.

🧩 Candidate Profile – What We Expect

1. Strong understanding of Rubber Injection Moulding Process Development and tool trials.

2. Experience in setting machine/mould parameters, rubber-metal bonding, and process fine-tuning.

3. Hands-on experience with Compression, Transfer, and Injection Moulding.

4. Working knowledge of CRB, rubber tooling (Hot Runner / Cold Runner), and basic plastics processing.

5. Familiarity with system audits and standard quality methodologies.

💡 Preferred Skills & Attributes

• Excellent analytical and problem-solving skills

• Strong communication and team collaboration

• Practical shop-floor experience with a continuous improvement mindset

📩 How to Apply

Candidates who meet the criteria can share their CVs at:

Email: bsingh@in.wocogroup.com

Top 10 Interview Questions & Answers

(Process Engineering – Rubber Injection/Compression/Transfer Moulding

1. What experience do you have with rubber injection moulding and tool trials?

Answer:
I have hands-on experience in setting up and optimizing parameters for rubber injection moulding, including temperature, pressure, injection speed, and curing time. During tool trials, I evaluate part fill, cure uniformity, flash, dimensional stability, and bonding quality. I document the findings and develop a stable process window to ensure repeatability.

2. How do you validate a new mould or process before releasing it to production?

Answer:
I follow a structured validation approach:

1. Mold setup verification

2. Parameter window study

3. First-off sample inspection

4. Capability study (Cp/Cpk)

5. Trial run for consistency

6. Documentation—setup sheets, SOPs, and validation reports

7. Approval through PPAP
   This ensures the process is stable, capable, and audit-ready.

3. What parameters do you control in rubber molding to maintain part quality?

Answer:
Key process parameters include:

• Material temperature

• Mold temperature

• Injection pressure & speed

• Back pressure

• Cure time

• Cooling time

• De-moulding force
  Controlling these ensures dimensional accuracy, bonding integrity, and minimal defects.

4. How do you handle high rejection issues in molding?

Answer:
I start with defect identification, conduct Why-Why Analysis or 8D, verify machine parameters, evaluate raw material consistency, inspect mold condition, and check operator methods. Based on findings, I implement:

• Parameter corrections

• Mold/tool maintenance

• Material handling improvements

• Operator training
  I also review trends using Pareto and control charts.

5. Explain your experience with 8D problem solving.

Answer:
I have led multiple 8D teams involving production, maintenance, and quality.
My approach includes:

• Defining the problem clearly

• Containment to protect customer

• Root cause analysis (Fishbone, 5 Why)

• Permanent corrective actions

• Verification and validation

• Updating PFMEA, CP, and SOPs
  This ensures prevention of recurrence.

6. What is your approach to preparing SOPs and setup sheets?

Answer:
I create SOPs and setup sheets by:

• Documenting approved process parameters

• Including visual aids for setup

• Detailing molding sequence, curing cycle, inspection checkpoints

• Adding safety precautions
  These documents help maintain process consistency and reduce operator variation.

7. How do you ensure process capability for a new part?

Answer:
I perform a capability study by collecting sample data after stabilizing the process. I calculate Cp & Cpk, ensuring values ≥ 1.67 for critical parameters. If results are low, I optimize machine settings, adjust curing time, and re-check tooling conditions before repeating the study.

8. What is your experience with rubber–metal bonding?

Answer:
I have worked on controlling key bonding factors such as surface preparation, adhesive application, drying time, molding parameters, curing cycle, and mold cleanliness. I ensure adhesion is validated through pull-off tests and peel tests.

9. How do you support audits like PPAP, APQP, PFMEA, and IATF?

Answer:
I prepare documentation such as:

• Process flow

• PFMEA

• Control Plan

• SOPs

• Molding parameter sheets

• Capability reports

• First-off inspection reports
  I also participate in audit walkthroughs and ensure corrective actions are promptly implemented.

10. How do you drive continuous improvement on the shop floor?

Answer:
I use tools like Kaizen, DOE, cycle time reduction studies, and waste analysis. I regularly monitor rejection trends and machine efficiency (OEE). I work with operators to standardize best practices and identify process bottlenecks.